For me it was the Grindhouse movies. When I saw it in theaters I had a great time with my friends. On Encore they were showing the full Grindhouse movie (fake trailers and all). It really was a cool idea, I just wish the two flims were better.
Just about any movie with a "Twist" is a lot harder to watch the second time. I don't believe I will ever see The Village, or signs again. Also, once in a life, is good enough for Blair Witch. I can find a 2 min clip of the end, if I want to go back there.
Then again, I have a odd memory that doesn't seem to let go of movies, so re-watching them is just for the moment experience of re-watching, not reminding.