Watch Will Ferrell and Adam McKay’s cult classic Step Brothers online. Step Brothers is a comedy about two immature grown men, Brennan and Dale, who become stepbrothers when their single parents ...

Reilly in this hilarious film, as two spoiled guys who live with their respective single parents. Their folks fall in love and marry, making the guys competitive step brothers.

Kathryn Hahn recalls improvising risqué Step Brothers scene: 'That came from the deep recesses of a recovering Catholic' Adam Scott tells Kathryn Hahn he felt like 'such an a--hole' scolding her ...