The Saturday Night Live cast member seems to be popping up everywhere, starring in Horrible Bosses and Hall Pass earlier this year.
The film features Farrell and Galifianakis as small district politicians vying for a seat in the US congress. It has not been announced what role Sudeikis will take, but he joins Sarah Baker and Katherine LaNasa in a strong supporting cast. The film is scheduled for an August 2012 release.
Sudeikis is also scheduled to appear as Batman in the upcoming Movie 43, a Farrelly brothers collection of comic shorts featuring an all-star cast. Expect Sudeikis to land several more movie roles between now and then.