( CM ) - Analysts are betting the bank on Leatherheads, directed by and starring George Clooney, to score the winning touchdown at the box office this weekend. Its main competition will be family film Nim's Island, starring Jodie Foster, from Walden Media and 20th Century Fox. Leatherheads is expected to open with about $15-20 million in ticket sales, while projections for Nim's average between $13 million and $16 million. Also entering the fray is The Ruins, a fright flick from DreamWorks and Spyglass Entertainment. Although the film is expected to gross $6-8 million, buzz on the Internet has been mostly positive, and its take could wind up being considerably higher.