Last Night on Late Night: Judd Apatow’s Kids Have Filthy Mouths, If Abbreviations Count

Last night, Conan O'Brien investigated the ridiculous cursing policies of the Apatow household; Will Ferrell made one of the greatest late-night entrances we've seen in 2011 (on The Daily Show); and Kenneth Branagh only wanted to promote what Craig Ferguson called "some twenty-year-old Australian porno" instead of his hugely successful film Thor. Watch our compilation to see what you missed.