VIDEO : Anna Kendrick To Join Blake Lively In 'A Simple Favour'

Anna Kendrick has signed up alongside Blake Lively to join the cast of the thriller movie, which is based on an adaptation of the Darcey Bell novel of the same name. 'A Simple Favour' will be directed by Paul Feig in what will be his first foray into the thriller genre. The novel only hit shelves in March this year, but it seems producers at Lionsgate can't wait to get started on the project, which is due to start filming in Toronto in August. At the moment it's unknown which character Anna or Blake will play, or which stars will be cast to play their respective children.