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It's a lazy Sunday, you've got your snacks lined up, and you're not planning on leaving the couch for three or four hours. This isn't the time for thought-provoking films that will challenge your deepest-held beliefs, nor is it really a time for a film you've never seen before that might end up sucking. When you're ready to relax and pretend the world doesn't exist for a while, you want a tried-and-true movie that's always fun to watch. These may not be the best films ever made, but you've probably watched them more than once and memorized several lines.