A Remake of the bollywood (indian) movie from 2005
http://www.imdb.com/title/tt0451803/
Its a remake of the 2005 indian blockbuster starring the superstar from India Salman Khan. If you watch this movie you'll come to know that it is a scene to scene copy of the original leaving the dance songs aside. I think if they wanted to copy any movie they should have at least acknowledged it. Don't expect that from stars like Jennifer Aniston and Adam Sandler.
6 people have been credited for the screenplay, wonder if the production team knew about this.