Brian Cox joins Jay Roach's Dog Fight
Brian Cox joins Will Ferrell and Zach Galifianakis in Jay Roach's Warner Bros. comedy, Dog Fight.

Will Ferrell and Zach Galifianakis lead as two rival politicians running for a congressional seat in a small North Carolina district election. The actor will play Zach Galifianakis' father, a former Senator who has always been distant toward his family, especially his son.

Jason Sudeikis, Dylan McDermott, Sarah Baker and Katherine LaNasa will be co-staring in the Chris Henchy/Shawn Harwell collaboration.

The comedy has started production this month in New Orleans.