I am sure that I have been much more useful to society as a medical physicist.
Sometimes you just work, you work, you work, and you have no life, no boyfriend, you have no more friends, no more nothing, you just make movies, and you're tired, and you don't know why. Then everybody says, 'Oh you are so lucky, you are working!' And you're like, 'Oh yeah, oh yeah, it's so great!'

