You've got to be able to know someone really well to be able to have a row and then also walk away from it and not have it matter, especially in this business. That doesn't mean to say we have many rows but I think the nearest thing to a row would be just flatly disagreeing with something .

I'm just trying to think what other sequels there were. There was the James Bond movies and not many. I think sequels have become a recent idea of franchising.

I spend a lot of my time just developing material; or the company does. That material can come from a book, can come from a newspaper, can come from a discussion and sometimes it can come from a script that got passed over and is floating around.

It doesn't matter how much faith you have or don't have [in aliens]. I just don't buy the idea that we're alone. There's got to be some form of life out there.

People say I pay too much attention to the look of a movie but for God's sake, I'm not producing a Radio 4 Play for Today, I'm making a movie that people are going to look at.

Some actors - you work with them once and don't even think about working with them again.

I want to make films about the human condition, what we're doing to the world or ourselves.