The best comedy is always played straight down the middle.

I had huge fun with Chris Evans, as Captain America, because super-soldier though he may be, he's still a man, up against a God who in his own mind is infinitely superior. Then, in the ring with The Hulk, we've got this silver tongued, lightening quick mind up against the embodiment of rage..Loki has this mercurial, transformative ability, not just physically but intellectually, so not all the fights are purely physical. Mind games? Maybe.

The best comedy is always played straight down the middle.

I'm sure favorite moments in movies are things that just happen accidentally when the camera is there. You have to do all the homework to get yourself into the period, the costumes, the style, the voice, the hairdo or whatever it is, but once you've done all that work, you have to kind of let it go and just be there. If you're always thinking about it, it just looks a bit over-thought.

The best revenge against bullies is absolutely, resolutely, never to let them change who you are. Know that whatever bullies say or do - it comes from their weakness, not yours.

In 'Thor,' that was my own hair. I grew it out. But I have naturally curly, blonde hair, so I'll never look like that. By the time I got to 'The Avengers,' I had come off two other films, which required me to have it very short. So I dyed it again and it was long enough to use a part of my hairline.

I am an optimist... I choose to be. There is a lot of darkness in our world, there is a lot of pain and you can choose to see that or you can choose to see the joy. If you try to respond positively to the world, you will spend your time better.