Updated: Monsters vs. Aliens destroys the competition to rank No. 1

[Update: Final box-office figures for the weekend show that Monsters vs. Aliens actually took in $59.3 million, $1.1 million more than estimated, while The Haunting in Connecticut's take remained at $23 million.]

DreamWorks Animation's 3-D animated Monsters vs. Aliens smashed the competition over the March 27 weekend, topping the box office and raking in a monstrous estimated $58.2 million, according to The Hollywood Reporter.

Monsters played on about 7,000 screens in 4,104 theaters, with the PG-rated action comedy offered in 3-D on just over 2,000 of those United States and Canadian screens. But the 3-D screens contributed 56 percent of the overall tally—or $32.6 million from just 28 percent of the screens—to power Monsters to the biggest 3-D opening ever, the trade paper reported. (The 3-D screenings charged more.)

Meanwhile, the supernatural thriller The Haunting in Connecticut opened strongly in second place with $23 million.

Nicolas Cage's Knowing, which topped the box office in its opening, dropped to third place in its second weekend of release, slipping a modest 40 percent to fetch $14.7 million, for a 10-day total of $46.2 million.

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