Help me choose a gift for a movie buff

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My uncle's birthday is coming up and he is a huge movie buff. In his basement he literally has a home theater setup with a projector and a huge movie screen on the wall. He's also got a small movie theater popcorn machine down there. His walls are pretty much covered in movie posters that are framed and backlit. It's really nice. So I'm trying to get a gift for him that is somewhat long those lines. I was looking at this place ( http://www.cvtreasures.com/ ) but then I kind of started to think, hey wait a minute, i want to get him something he will like, but on the other hand i don't know if I can find anything that he doesn't already have, you know? Do you think I should just go another route, like giving him a giftcard to a local movie theater or something? Why is buying gifts so hard? Thanks.