Source: Variety

Adam Sandler will star as both Jack and his twin sister Jill in Jack and Jill, a new project being housed at Columbia.

Sandler is coming off the financial failure of Funny People, which represented a darker turn for the comedic actor. Luckily, he should rebound with Grown Ups, a comedy that is due in June 2010 and co-stars Kevin James, Chris Rock and Salma Hayek, among others.

By taking on multiple roles in the same movie, Sandler joins fellow Saturday Night Live alums Eddie Murphy and Mike Myers. Both Murphy and Myers have had success with the concept.