"Vince Vaughn joins Will Ferrell in <em>Daddy's Home</em>Vince Vaughn has joined the cast of Etan Cohen's upcoming comedy Daddy's Home.

Will Ferrell stars as a radio executive, who strives to be the world's greatest stepfather. His plans are disrupted when his wife's freeloading ex-husband comes back into the picture and forces him to compete for their kids' affection.

Etan Cohen is directing from a script he co-wrote with Brian Burns, Adam McKay and Chris Henchy. Will Ferrell and Adam McKay are producing alongside Joe Drake, Nathan Kahane, Matt Leonetti, Spencer Wong and Jessica Elbaum.

Production will begin in the early fall.