"I Am Number Four," with an ensemble company featuring Alex Pettyfer, was a close second with $19.5 million; the animated "Gnomeo and Juliet," with the voices of James McAvoy, Michael Caine, Maggie Smith and Patrick Stewart, a close third with $19.4 million.
All studio estimates of gross box receipts are via Box Office Mojo.
"Just Go With It" was fourth and also close to the leaders with $18.2 million; "Big Mommas: Like Father, Like Son" with $17 million was fifth.
"Justin Bieber: Never Say Never" was sixth with $13.6 million; "The King's Speech" seventh with more than $6.56 million; "The Roommate" eighth with $4.1 million; "The Eagle" ninth with more than $3.55 million.
"No Strings Attached" was 10th with $3.12 million.
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