I would throw money at anyone who made a Culture movie (as ironic as that action would be).

Also, what about a Vorkosigan movie? Though I think it'd actually work pretty well as a TV show, with either hour-long episodes (one per book) or even with 2-4 shorter episodes per book.

Having read most of the other Culture novels, I'm actually reading this one at the moment, a fantastic read so far. I love the Culture novels, the universe that comes with it and all the intricate societal considerations.

I've been thinking about, hell, craving for a screen adaptation of the Culture novels, though instead of a movie, I think it should probably be a show. It'd have to be really well done, there are a lot of things to take into account and I'm afraid a lot of TV producers/writers might cheapen it. I'm thinking the likes of HBO might be able to pull off something like that.

I remember Iain M. Banks saying he was really worried about how TV writers might represent the ships, among other things, and I can totally get that. I can't find the source for this now, sorry, I thought it was in this http://nuwen.net/culture.html (amazing read by the way), but a quick scan didn't bring it up.

I am curious as to how there are no Culture films

I don't think UoW would make a good movie. It's a fantastic book, but it would have to be extremely long to capture everything needed for a movie, and I still don't think it would work well. For one thing, how could you capture the confusion that leads to the final twist in film?

I think Consider Phlebas would be the one to go for. It has just about everything you could want for a fun action movie, but it's also smart. I recall Banks saying that he saw Star Wars and decided he could do better, and that's where CP came from, so it's a pretty natural fit. It's also quite a bit less serious than UoW and as a result I think it could stand being shaved down to movie length.