The film opened on February 12 , 2010 in 3,356 theaters ; its opening weekend box-office results totaled $ 31,236,067 in the U.S. , finishing at # 3 behind The Wolfman , which opened at # 2 with $ 31,479,235 and Valentine 's Day , which opened at # 1 with $ 56,260,707 . The film opened on February 12 , 2010 in 3,356 theaters ; its opening weekend box-office results totaled $ 31,236,067 in the U.S. , finishing at # 2 above The Wolfman , which opened at # 3 with $ 31,479,235 and below Valentine 's Day , which opened at # 1 with $ 56,260,707 .