Jonah Hill Joining Ben Stiller in Fox's 'Neighborhood Watch'

Jonah Hill Headshot 2011
<p> BEVERLY HILLS, CA - FEBRUARY 28:&nbsp; Actor Jonah Hill attends the Venice Family Clinic Silver Circle 2011 Gala at the Beverly Wilshire on February 28, 2011 in Beverly Hills, California.</p>   |   David Livingston/Getty Images
Vince Vaughn and Rosemarie DeWitt co-star in the sci-fi comedy, being directed by Akiva Schaffer.

Jonah Hill is in negotiations to join the cast of Fox’s Ben Stiller sci-fi comedy Neighborhood Watch. Shawn Levy is producing.

Vince Vaughn and Rosemarie DeWitt are already on board the movie, being directed by Akiva Schaffer, which centers on a suburban "neighborhood watch" group created by a homeowner after a local murder occurs. The group finds itself in over its head when it uncovers an alien plot to destroy the world.

Hill will play Vaughn’s sidekick, one who constantly embellishes his past to include a rough and dark side.

The movie will shoot in Georgia in the fall.

WME-repped Hill will be in Columbia’s Brad Pitt baseball drama Moneyball in the fall as well as next year’s big-screen version of 21 Jump Street.