In filmmaking, surprise endings and quests for mysterious objects can derail your movie entirely if not handled well. Today, we take on the best (and worst) plot twists and MacGuffins in cinematic history. We're talkin' final reveals in Psycho and The Sixth Sense, Marcellus Wallace's briefcase in Pulp Fiction, the "one ring to rule them all," and many more. We also discuss the careers of such directors as Alfred Hitchcock, M. Night Shyamalan, and David Fincher, and whether or not being known for plot twists and MacGuffins is a good thing.