'Grey's Anatomy' star Patrick Dempsey has signed on to star in an untitled bank-heist comedy, due to be directed by 'Lucky Number Slevin' helmer Paul McGuigan.

The script for the film was written by 'The Hangover' scribes Jon Lucas and Scott Moore.

According to The Hollywood Reporter, Dempsey "will play a man caught in the middle of two different robberies at the same bank who tries to protect a bank teller with whom he's secretly in love".

Production is due to start in April, with Peter Safran and Foresight Unlimited's Mark Damon serving as producers with Dempsey, while Joannie Burstein will act as executive producer. Dempsey can also be seen in the ensemble comedy 'Valentine's Day', directed by Garry Marshall.