Adding John Lithgow to a film’s cast is nearly always a good move, and that’s probably going to bes true of the political comedy Dog Fight, which Variety reports Lithgow has signed up to star in, although no details have been given as to what character he’ll be playing.

The movie is about two political rivals (Will Ferrell and Zach Galifianakis) who are competing for a Congressional seat in a small North Carolina district. Jason Sudeikis, Sarah Baker, Brian Cox, and Dylan McDermott also star.

Jay Roach is directing Dog Fight from a screenplay by Shawn Harwell and Chris Henchy. Ferrell and Galifianakis are producing alongside Adam McKay. And they’d better start filming soon, as Warner Bros. already has the comedy slated for release on August 10, 2012, ahead of the US election in the autumn.

General movie news courtesy of Movie Muser