Funny People starred Seth Rogen.
Funny People . It stars Adam Sandler , Seth Rogen , Leslie Mann , Eric Bana , Jason Schwartzman , Jonah Hill and Aubrey Plaza , and follows a famous comedian who is diagnosed with a terminal disease and tries to fix the relationships in his life . Seth Rogen . After Rogen received critical praise for his performance , Universal Pictures agreed to cast him as the lead in Apatow 's films Knocked Up and Funny People .