You've seen the scene a bazillion times in movies and on TV. One person turns to another and says—because they've arrived in some strange place, or because something really weird just went down—"We're not in Kansas anymore." And a lot of those times, the movies and TV shows have been sci-fi.
Now not all of the clips used in this montage are from sci-fi and fantasy, but we figured that since more than half of them are, and the phrase is shown being used in movies like Avatar, The Matrix and Swamp Thing and TV series such as Supernatural, Smallville, Stargate SG-1 and Farscape, it'd be worth your time.
Having trouble identifying them all? Check out the creator's site for a complete list.