The Dark Knight is quite simply the kind of movie that makes you lean forward in your seat and ignore a rumbling stomach or full bladder because you don't want to miss a thing. It is also the kind of movie that you'll probably walk out of saying, 'I'm going to need to see that again.' Christopher Nolan's delightfully dark follow-up to Batman Begins is a masterfully crafted summer blockbuster that's slick but not stupid, with Gotham City standing in for New York in a thinly-veiled but surprisingly poignant commentary on the state of post-9/11 America. The film features a tremendous cast, including Maggie Gyllenhaal as Rachel Dawes in an abrupt but overdue replacement of Katie Holmes from the previous film. All of the principals are wonderful, as you'd expect them to be, but Heath Ledger as The Joker steals the film. His performance, the most complex of his too-short career, is the best thing about a great film. In fact, the Joker's perfectly blood-curdling laugh is reason enough to go see the movie, as Ledger makes Nicholson's Joker look like he should be entertaining at children's birthday parties. The Dark Knight is an intelligent, wildly entertaining summer movie that is best enjoyed on a big screen. Do yourself a favor and go see it. Just leave the kids at home.