The Best Comedy Sequels

In light of the "The Hangover Part 2" being released over the weekend, we're talking about what makes a great comedy sequel, and why so many of them fall short. (Full Disclosure: We didn't see "Hangover 2" yet, but we're sure it's great...) We take a look at the best comedy sequels, and some of the worst. And then we dream up a pitch to the inevitable "Bridemaids" sequel. We'll be waiting by the phone, Hollywood.