'Prom Night,' 'Street Kings' debut 1-2

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LOS ANGELES, April 13 (UPI) -- It's teen prom season in the United States so it may be no surprise the horror flick "Prom Night (2008)" opened at No. 1 in U.S. theaters this weekend.

The Nelson McCormick-directed flick racked up an estimated $22.7 million in ticket sales, Box Office Mojo reported Sunday.

Another new movie, the crime thriller "Street Kings," starring Keanu Reeves and Forest Whitaker, was way back in No. 2 with $12 million in estimated gate receipts.

"21," which had been the top movie the past two weeks, came in third at $11 million, followed by "Nim's Island" at $9 million, "Leatherheads" at $6.21 million and "Dr. Seuss' Horton Hears a Who!" at $6 million.

Another new movie, "Smart People," with Dennis Quaid, Sarah Jessica Parker, Thomas Haden Church and Ellen Page, came in a No. 7 with $4.2 million.

Rounding out the Top 10 were "The Ruins," $3.25 million; "Superhero Movie," $3.11 million; and "Drillbit Taylor," $2.07 million.

Missing from the top tier this week were "Tyler Perry's Meet the Browns," "10,000 B.C." and "Shutter."