Anna Faris and Chris Evans sign up for What's Your Number?

House Bunny star Anna Faris has signed up to star in a new film alongside the Fantastic Four's Chris Evans.

The pair will feature in the comedy What's Your Number?, which is based on Karyn Bosnak's book 20 Times a Lady.

Faris will play Delilah Darling, a woman who thought she would have met her perfect man by the time she slept with 20 of them. But, after sleeping with her boss after a drunken night out, she realises she has reached her self-imposed limit and has to revisit her old conquests in a bid to find 'the one'.

Evans stars as her womanising next-door neighbour who helps her on her quest.

The film will be directed by Mark Mylod and produced by Beau Flynn and Tripp Vinson.

Jennifer Crittenden and Gabrielle Allan have adapted Bosnak's novel for the big screen.

Anna can also be seen starring in Young Americans and Yogi Bear later this year, while Evans' latest project is The Losers.