Chris Hemsworth is like Christopher Reeve in that he can do two things: he can wear a big red cape without a shred of self-consciousness. But he's also funny as hell, and he's so sweet. So with all the fish-out-of-water stuff, he's so funny. So he does almost two jobs in a way.

If you play it straight it's funny - the best comedy is always played straight down the middle. The adjustment is understanding from the screenplay that a moment is hilarious.

Haters never win. I just think that's true about life, because negative energy always costs in the end.

Loki in 'Thor' is the most incredible springboard into a sort of excavation of the darker aspects of human nature. So that was thrilling, coming back knowing that I'd built the boat and now I could set sail into choppier waters.

The dream is to keep surprising yourself, never mind the audience.

Heath Ledger's performance in 'The Dark Knight' quite simply changed the game. He raised the bar not just for actors in superhero films, but young actors everywhere; for me. His performance was dark, anarchic, dizzying, free, and totally, thrillingly, dangerous.