Will Ferrell keeps the fake testicles he used in Step Brothers in a “special box.”

Ryan Reynolds wished Will Ferrell a happy birthday with a message that's sure to delight Step Brothers fans.

As if this Step Brothers scene wasn’t wild enough!

Did we just get won over by a deepfake? YEP!

Will Ferrell and Adam McKay are most famous for giving us one of the most iconic and quotable comedy movies ever made, Anchorman: The Legend of Ron Burgundy. But four years later, they made another movie that is just as quotable – if not more – and while Step Brothers wasn’t ostensibly as successful as Anchorman, it has gained a huge cult following in the decade or so since its release.