I think doing period piece is easier, because after a certain distance, everybody is equal, I think. The relative contemporary is harder. I think that's the way it is.

Over the years Woodstock got glorified and romanticised and became the event that symbolised Utopia. It's the last page of our collective memory of the age of innocence. Then things turned ugly and would never be the same again.

My first instinct was to cast as close to the short story as possible, but then I realized that I needed actors who could go for it and that they had to function well as a couple in a love story.

When I started out, nobody gave me scripts, so I had to write...

I like to think I'm un-categorisable.

So anything that's not absolutely needed, we would cut it [footage] out, which would make me very insecure; everything has to work, and it's a water movie in 3D with a kid, animals. So the more I do that, the more I'm scared of "What if it doesn't go the way we want it?" But we had to do that to meet the budget, otherwise we wouldn't even have a start-date.

Only one time in my career I had that feeling [that this is not gonna get made], it was for this movie [Life of Pi]. It was right before we started the physical pre-production. I pre-visualized the whole ocean part before we made the movie, I was that prepared. At one point they seemed to want to drop it because it was really risky. The budget we proposed was a lot higher than they expected, they wanted to [drop it]. After all, it's a philosophical book and a literature property, it's not Batman.