Another idea: second-run movie theaters. Wait a week or two, save some money and miss out on the ads. Or, if you live in a big enough city, just don't go to the multiplexes, as someone below said. Thankfully, locally, there's a single-screen independent second-and-sometimes-first-run movie theater that also doubles as one of the cooler places to hang out in the city.
Studio 35, Columbus, Ohio I think I saw the wonderfuly awful Swordfish there 3 or 4 times. Each time, progressively more drunk. I could've gotten drunk at home and watched the same movie on dvd, but it wouldn't have been nearly as much fun.