The film was originally planned to be released on September 17, 2010, but was moved to February 4, 2011. The trailer can be seen with Devil and Burlesque.
Opening in 2,534 theaters, the film grossed $15.6 million its opening weekend to take first place at the box office. CinemaScore polls indicated a B- rating from audiences. Its distributor estimated that females under the age of 21 accounted for two-thirds of its audience
Source : wikipedia.com