It's like all things though, some people like Lord of the Rings, others think it's pointless drivel, some people like 'Real Life' or 'Political' Dramas or Soap Operas, whereas I think they are some of the most boring crap on TV, it's all down to personal taste. I've never been a big fan of James Bond, for example, in any of its incarnations, I didn't enjoy Vanilla Sky, but I did enjoy Sixth Sense. I don't think there's any steadfast way of identifying what people are or are not going to like.
Edit: Another good example would be 2001: A Space Odyssey, that's a film that has divided movie-goers opinions for as long as I've been alive.