Pulp Fiction and Reservoir Dogs. I just can't stand them. I doubt I'll ever try a Tarantino movie again. Everyone I know talks him up so high, but I just don't like the style. The plot was loose at best, and I didn't care if the characters lived or died or what happened to them.
2001: A Space Odyssey. I tried to watch it several times, and every time I fall asleep. It does not bode well if it can't keep my interest when I'm well-rested and ready to watch it.
The Big Lebowski. I tried to watch a few minutes and had to leave, it just did not appeal to me at all. Also, one of my exes seemed to think that this was the only movie in the world worth watching, and how stupid did I have to be that I'd never seen it, and we should watch it right now (despite it already being 2 in the morning). No, thanks, I'll pass.
Rocky Horror Picture Show. Yeah, there's a few catchy songs, but I was finally forced to sit down and watch it this year, and I just don't see the appeal. Luckily it was just the background at a Halloween party, but there was no other room in the house to socialize in, so I was stuck. And then everyone started making plans to go to a theater interactive version, and they all looked at me like I had three heads when I declined going with them. I have never felt so out of place before.