I've been interested in dreams since I as a kid and I've wanted to do a film about them for a long time.

The real truth of that is that much as you want to believe that it's you being on top of everything, you're actually relying massively on the people around you.

It's very important that a film that intends to play tricks on the audience... has to play fair with the audience. For me, any time you're going to have a reveal in the film, it's essential that it have been shown to the audience as much as possible. What that means is that some people are going to figure it out very early on. Other people not til the end. Everybody watches the film differently.

When you play a videogame, you could be a completely different person than you are in the real world, certain aspects of the way your brain works can be leveraged for something you could never do in the real world.

Well, you always discover a lot in the editing room. Particularly the action, because you have to over-shoot a lot and shoot an enormous amount of material because many of the sequences have to be discovered in the editing and manipulation of it.

As soon as television became the only secondary way in which films were watched, films had to adhere to a pretty linear system, whereby you can drift off for ten minutes and go and answer the phone and not really lose your place.

I don't particularly enjoy watching films in 3D because I think that a well-shot and well-projected film has a very three-dimensional quality to it, so I'm somewhat sceptical of the technology.