The only movie harder to get right than the original is the sequel. Especially if that sequel is to a comedy.
A truly good sequel to a funny movie -- whether live-action or animated -- is a rare, if not endangered, species in Hollywood. For every "22 Jump Street" or "Toy Story 3," there's a "City Slickers II" (cringe) or "The Hangover: Part III" (double cringe).
"Zoolander No. 2" is the latest film that will either live or die on the altar of new installments. In honor of all the Blue Steel impressions your friends will be making this weekend, here are 13 sequels that managed to pull off the tricky feat of not sucking.