Here's our MEGA movie preview of fall's 25 hottest sci-fi trailers

Summer movie madness may be over, but that doesn't mean there won't be more awesome films coming your way. From Resident Evil: Afterlife to the latest Harry Potter installment, here are trailers for the sci-fi, fantasy and horror flicks yet to premiere this year.

While most of the films are running wide (which means they'll be most everywhere), we also found some worthy-looking (and some questionable) entries that are opening in limited areas, too. And remember, movie release dates may change at the whim of the powers that be.

Alpha and Omega - Premieres Sept. 17

It's the ultimate animated 3-D road trip for two young wolves who are trying to get home after being relocated by park rangers and shipped halfway across the country. The problem is that Kate is an alpha wolf, and Humphrey ... not so much. He's an omega wolf, and they make the perfect odd couple as they travel thousands of miles to get back home. Hayden Panettiere and Justin Long voice Kate and Humphrey, with Christina Ricci, Danny Glover and the late Dennis Hopper also voicing characters.

The Chronicles of Narnia: The Voyage of the Dawn Treader - Premieres Dec. 10

Narnia returns in 3-D. Edmund, Lucy and their cousin Eustace find themselves swallowed into a painting, which lands them on a fantastic Narnian ship, the Dawn Treader, for an adventure that will determine the fate of Narnia itself. Once again they join up with Prince Caspian and the warrior mouse Reepicheep as they are whisked away on a mission to the Lone Islands. The sequel was directed by Michael Apted and stars Georgie Henley, Skandar Keynes, Ben Barnes and Will Poulter.

Case 39 - Premieres on Oct. 1

Renee Zellweger plays social worker Emily Jenkins, who takes on the case of 10-year-old Lilith Sullivan (Jodelle Ferland). Emily's worst fears are confirmed when she discovers that Lilith's parents are cruel and dangerous. Emily takes the girl out of the home and decides to keep her with her until she finds the perfect foster home. However, Emily soon learns that there are dark forces at work when it comes to Lilith, and attempts to protect her will only bring a greater horror. Case 39 was directed by Christian Alvart and also stars Ian McShane and Bradley Cooper.

Chain Letter - Premieres in limited release on Oct. 8

Promising horror's newest villain, the Chain Man, the story focuses on a group of high school friends who begin receiving foreboding email chain letters. The emails promise that if they break the chain, a life will be lost, and one by one those who do not forward the chain letter are hunted down and gruesomely killed. The film was directed by Deon Taylor and stars Nikki Reed, Noah Segan, Keith David and Betsy Russell.

Devil - Premieres Sept. 17

A group of people are trapped in an elevator, and one of them is the devil. Talk about having a bad day. Based on a story by producer M. Night Shyamalan, the film was written by Brian Nelson and directed by Drew Dowdle and John Erick Dowdle. Chris Messina, Geoffrey Arend and Logan Marshall-Green star in this supernatural thriller.

Enter the Void - Premieres in limited release on Sept. 24

Oscar and his sister, Linda, are recent arrivals in Toyko. Unfortunately for the small-time drug dealer and his nightclub-stripper sister, Oscar is shot during a police bust. However, Oscar made a promise to Linda that he would never leave her. As he lies dying, his spirit wanders through the city in a hallucinatory maelstrom that merges the past, present and future. Loosely based on the Tibetan Book of the Dead, the film is written and directed by Gaspar Noe. Nathaniel Brown, Paz de la Huerta and Cyril Roy star.

Gulliver's Travels - Premieres Dec. 22

In this contemporary 3-D re-imagining, Jack Black plays Gulliver, a mailroom clerk who ends up assigned to write a travel piece on the Bermuda Triangle. However, after experiencing the Bermuda Triangle up close and personal, he's washed up on the hidden island of Lilliput, which is inhabited by tiny people. The reboot was directed by Rob Letterman and stars Emily Blunt, Jason Segel, Amanda Peet, Billy Connolly and Catherine Tate.

Harry Potter and the Deathly Hallows: Part 1 - Premieres Nov. 19

The epic journey for our favorite boy wizard is about to end, and it's in 3-D. Harry, Ron and Hermione must find the rest of the Horcruxes to take down Voldemort, who now controls both the Ministry of Magic and Hogwarts. This movie corresponds to the first part of book seven, the last of the series. The film stars Daniel Radcliffe, Rupert Grint, Emma Watson and Ralph Fiennes. Part 2 is set to premiere in July 2011.

Hatchet II - Premieres on Oct. 1

The sequel to "the Holy Grail of slasher films" promises double the body count of the original. Marybeth, now played by Danielle Harris, manages to escape the clutches of the deformed, swamp-dwelling killer, Victor Crowley. After discovering the truth about the hatchet-wielding madman's curse, Marybeth returns to the Louisiana swamps along with an army of hunters to seek revenge against Crowley and kill him once and for all. Hatchet II was written and directed by Adam Green and also stars Kane Hodder, A.J. Bowen and Tom Holland. Hatchet II is set to be released without an MPAA rating and will mark the widest release of an unrated genre film in more than 25 years.

I Spit on Your Grave - Premieres in limited release on Oct. 8

A remake of the 1978 cult classic. Jennifer Hills, an attractive young writer, took a cabin in the woods to work but was brutally tortured and chased to her suicidal death by the depraved townspeople. But she didn't die, and now she's back, living for nothing but revenge. The film was directed by Steven R. Monroe and stars Sarah Butler, Rodney Eastman and Jeff Branson.

It's a Wonderful Afterlife - Running now in limited release

Considered My Big Fat Greek Wedding meets Shaun of the Dead, this British killer comedy centers on an Indian mother who is obsessed with finding her plump daughter a husband. When Mrs. Sethi can't get past the rudeness of the families who've rejected her daughter, she turns to murder. The police start to close in, and Mrs. Sethi's victims begin to haunt her. The only way the victims will be able to be reincarnated is if their murderer dies. While Mrs. Sethi has no problem committing suicide so she can join her deceased husband, she's not about to go anywhere until she finds the right match for her daughter. Suddenly the spirits decide it's in their best interest to help the daughter find a husband too. The film was directed by Gurinder Chadha and stars Zoë Wanamaker, Goldy Notay and Sendhil Ramamurthy.

Legend of the Guardians: The Owls of Ga'Hoole - Premieres Sept. 24

Based on the books by Kathryn Lasky, this animated 3-D feature follows Soren, a young owl, who finds himself on the adventure of a lifetime when he and his brother fall from their treetop home and are captured by the evil Pure Ones. Now they must attempt a daring escape with hopes they can find the Great Tree, the home of the legendary Guardians of Ga'Hoole, a mythic band of winged warriors who may be the only ones who can save all of owlkind from the Pure Ones. Emily Barclay, Abbie Cornish, Emilie de Raven, Ryan Kwanten, Helen Mirren, Geoffrey Rush and Hugo Weaving voice characters in the film, which was directed by Zack Snyder.

Let Me In - Premieres Oct. 1

A remake of a Swedish vampire film Let the Right One In. A young boy who is bullied at school and neglected at home meets a girl who becomes his only friend and gives him strength ... but she's got a secret. The horror elements are downplayed in favor of the relationship story. The film was written and directed by Matt Reeves and stars Kodi Smit-McPhee, Chloe Moretz and Richard Jenkins.

Megamind - Premieres Nov. 5

Brad Pitt and Will Ferrell take on the roles of superhero and supervillian in this 3-D animated comedy. Brad Pitt is the insufferable superhero Metro Man, Will Ferrell is the insecure supervillian Megamind, and Tina Fey is the incomprehensibly brave girl reporter. Unfortunately for Megamind, he's not a very successful supervillian; Metro Man always saves the day no matter how clever his evil plans to conquer Metro City. However, when Megamind finally gets the one thing he wants most, life for this supervillian will never be the same.

Monsters - Premieres in limited release on Oct. 29

Six years after a NASA probe was sent up to investigate the possibility of alien life, it crashed during re-entry over Central America. New life forms began to appear, and half of Mexico was quarantined in an attempt to contain the creatures. The story follows a U.S. journalist and a tourist as they attempt to get through the infected zone to safety across the U.S. border. The film was written and directed by Gareth Edwards and stars Scoot McNairy and Whitney Able.

My Soul to Take - Premieres Oct. 8

Written and directed by Wes Craven and in 3-D, My Soul to Take is about a serial killer who returns to his hometown to stalk seven teens who share the same birthday, which just happens to be the date he allegedly died. The film stars Max Thieriot, John Magaro and Emily Meade.

Never Let Me Go - Premieres in limited release on Sept. 15

The children of Hailsham boarding school are special ... a little too special. Kathy, Tommy and Ruth grow up in the idyllic school setting only to learn a terrible truth when they become adults. Keira Knightley, Andrew Garfield and Carey Mulligan star.

Paranormal Activity 2 - Premieres Oct. 22

It's back ... and the trailer tells us there's a baby and a dog, that we're guessing the nasty spirit from the original will be after them. Michael Perry wrote the script, and Kip Williams directs.

Resident Evil: Afterlife - Premieres Sept. 10

Alice is back, and this time she's in 3-D, and she's going to make the Umbrella Corporation pay. Milla Jovovich and Ali Larter reprise their roles as Alice and Claire in yet another sequel with tons of kick-ass zombie action.

Saw 3D - Premieres Oct. 29

A group of Jigsaw survivors gather to get support from self-help guru and fellow survivor Bobby Dagen in the latest installment in the popular franchise. It's all in "Heart-Pounding 3D," and it's being billed as the last film in the series. Saw 3D was directed by Kevin Greutert and stars Tobin Bell, Cary Elwes, Costas Mandylor, Betsy Russell and Sean Patrick Flanery.

Season of the Witch - Premieres Dec. 31

Nicolas Cage stars as medieval knight Behmen, who sets out on a mission to deliver a young peasant girl, who is believed to be a witch, to a remote abbey where her powers can be vanquished. As Behmen and five others set off with the girl on their journey, they discover they are up against an ancient and dark force that threatens mankind. The film was directed by Dominic Sena and also stars Ron Perlman, Stephen Campbell Moore and Christopher Lee. While Season of the Witch was originally set to be released earlier this year, additional reshoots are planned for September. So that means the Dec. 31 date may change.

Skyline - Premieres Nov. 12

The human race is about to learn that ETs are here and they're not friendly. When strange lights descend on the city of Los Angeles, people are attracted to them like moths to a flame, and an extraterrestrial force threatens to swallow the entire human population from the face of the Earth. One band of survivors must fight for their lives as the world goes to hell. The film was directed by Colin Strause and Greg Strause and stars Eric Balfour, Donald Faison, Scottie Thompson and Brittany Daniel.

Tangled - Premieres Nov. 24

Walt Disney's latest animated feature takes on the Brothers Grimm fairytale of Rapunzel in 3-D. The action-packed, swashbuckling musical comedy tells the story of the princess (voiced by Mandy Moore), who was kidnapped as a baby and locked in a castle. Longing for adventure, she also happens to have 70 feet of magical, golden hair. Along comes a dashing bandit (voiced by Zachary Levi), and they're off on a hair-raising escapade with her captor in pursuit. The film has original music by Alan Menken and lyrics by Glenn Slater and was directed by Bryon Howard and Nathan Greno. Other actors voicing roles include Donna Murphy, Ron Perlman, M.C. Gainey, Jeffrey Tambor and Brad Garrett.

TRON: Legacy - Premieres Dec. 17

This long, long-awaited sequel is the best excuse there is yet for using digital 3-D. In the story, Sam Flynn (Garrett Hedlund) is haunted by the mysterious disappearance of his father, Kevin Flynn (Jeff Bridges reprising his original role). Kevin was the world's leading video-game developer until he vanished. When Sam sets out to investigate a strange signal coming from his father's abandoned arcade, he is suddenly pulled into the digital world where Kevin has been trapped for more than 20 years. Finding himself having to depend on helpful "programs," such as the fearless warrior Quorra (Olivia Wilde), Sam must embark on an epic journey across a universe created by his father. The film was directed by Joseph Kosinski and written by Lost producers Edward Kitsis and Adam Horowitz. It also stars Bruce Boxleitner, James Frain and Michael Sheen.

Yogi Bear - Premieres Dec. 17

Dan Aykroyd voices Yogi Bear in a big-screen live-action/animated 3-D version of the cartoon. Unfortunately, Jellystone Park is losing business, so the greedy Mayor Brown decides it's time to shut the park down and sell the land. Yogi must prove he really is "smarter than the average bear," as he and Boo-Boo (Justin Timberlake) join forces with their nemesis Ranger Smith to find a way to keep Jellystone Park from closing forever. The film is directed by Eric Brevig and also stars Tom Cavanagh, Anna Faris and Andy Daly.

Which movies are you most looking forward to seeing?

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