Acting is fun for me and it doesn't really matter how, whether it's hard work or easy work, it's always fun.
And if you're a golfer and you watch a golf film and Matt Damon swing, and it's not great, then you're not going to believe in the golf story, you're not going to believe in the rest of the film. That's the whole movie, so if that swing looks like crap, the movie's crap.