John Lithgow has joined the cast of the political comedy "Dog Fight" says Variety.
The film centers on competing presidential candidates played by Will Ferrell and Zach Galifianakis
We don't yet know any deets about the role that Lithgow will play--my hunch would be the father to Ferrell. Cox is playing dad to Zach and seeing them spar might be fun--but as I say that's just a guess
Jason Sudeikis, Dylan McDermott Brian Cox Sarah Baker and Katherine Lanasa also star.
Chris Henchy and Shawn Harwell wrote the screenplay for director Jay Roach
Adam McKay will co-produce the film with Will, Zach and Roach
Production will take place in New Orleans with a release date scheduled for August 10, 2012 just in time for the next US Presidential election.