Step Brothers (2008)

Cast: Will Ferrell, John C. Reilly, Richard Jenkins, Mary Steenburgen, Adam Scott, Kathryn Hahn, Andrea Savage, Rob Riggle, Lurie Poston, Elizabeth Yozamp

Brennan Huff and Dale Doback might be grown men. But that doesn't stop them from living at home and turning into jealous, competitive stepbrothers when their single parents marry. Brennan's constant c…