I think for most people, the audience probably couldn't tell the difference, but I know they [shots of visual effects] can be better. And the people working know they can be more precise. I'm still doing another round of sound mixing and color timing, pretty technical stuff. I think the movie [Life of Pi] is really presentable, nothing was left out that would take you out of the movie. I just need to perfect the job and I still have two weeks to go [to deliver final cut to Fox].

When I have a full schedule like that, I don't see myself sitting there for a couple of months, doing the research, going through a painful process, it's just not my thing anymore.

When you go for something because you're curious about it, you get psyched up about the chance of getting into it. It's like an actor meets a role, and you slip into that body and see what happens, to experience certain conditions, to adopt a certain character. Even shooting is a study of the character. I think both the character and the actor, and eventually the filmmaker - myself - are finding a way to accept their environment and being accepted and feel comfortable of themselves.

Making this movie as a period piece about a period that was very recent in people's minds. I was in Taiwan [during the 1970s], so I hope I did all right. Otherwise, it could be the biggest embarrassment of my life. Also, the story is not linear, it's patchy, like a cubist painting, and there is always the possibility it will not hold together, it will fall apart. The tone is part satire, part serious drama, part tragedy, all mixed together, and it has to hit an emotional core. That's also very scary.

I think great romance needs great obstacles and textures.

I like to go back to Chinese film-making from time to time. I don't think I can make Chinese films back to back; it's such a big effort. I'd have to take a very long break.

I am not particularly religious. But I think we do face the question of where God is, why we are created and where does life go, why we exist. That sort of thing. And it is very hard to talk about it these days, because it cannot be proven. It is hard to discuss it rationally.