Jonah Hill and comedian Louis C.K. will play Ricky Gervais' neighbors in the Warner Bros. release "This Side of the Truth."

They join Jennifer Garner and Rob Lowe in the comedy, which takes place in a world where lying doesn't exist.

The story centers on Mark (Gervais), an average guy who discovers his newfound ability to tell untruths and uses the skill in his effort to seduce a woman (Garner) who is way out of his league.

Hill will play Mark's neighbor, who suffers from depression, while Louis C.K. will play Mark's loser best friend.