Dax Shepard will star in the new comedy Baby Mama alongside SNL alums Tina Fey and Amy Poehler. Sigourney Weaver is also set to star in the film.

According to The Hollywood Reporter, Shepard will play the role of Poehler's cheating husband. When she becomes a surrogate mother for Tina Fey's character, Dax decides to scam the two women.

The film was written and directed by Michael McCullers. Lorne Michaels (who produced Fey's Mean Girls) and John Goldwyn are producing through their own Michaels Goldwyn banner.

Shooting begins this month.