Okay, the thread title might be a tad complex, but I thought this might be a fun exercise. I'm looking for scenes in movie sequels where an actor - hero or not - uses some gimmick that worked in the first movie, but fails in the sequel. Here are a couple cases in point (spoilers abound): In The Karate Kid, the hero wins the tournament by using the crane technique. In The Karate Kid, Part II, he tries the same thing and gets pummeled. In Blade, the hero defeats the arch-villain by using a chemical called EDTA (an anti-coagulant). In Blade II, he tries it on the villain du jour and fails. What other sequels are out there with similar scenes?