Some of the greatest actors have turned superheroes into a serious business: Michael Keaton and Jack Nicholson in 'Batman'; Ian McKellen and Patrick Stewart, the first venerable knights of the X-Men, who have now passed the baton to Michael Fassbender and James McAvoy.

In our increasingly secular society, with so many disparate gods and different faiths, superhero films present a unique canvas upon which our shared hopes, dreams and apocalyptic nightmares can be projected and played out.

You look at the greatest villains in human history, the fascists, the autocrats, they all wanted people to kneel before them because they don't love themselves enough.

Our job is to represent the truth of human nature, whether you're playing a tender love story that's set in a coffee shop or whether you're in 'The Avengers,' which is set in a Manhattan which is exploding.

I always found the extraordinary loss of life in the First World War very moving. I remember learning about it as a very young child, as an eight- or nine-year-old, asking my teachers what poppies were for. Every year the teachers would suddenly wear these red paper flowers in their lapels, and I would say 'What does that mean?'

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.

Showing young children in these communities, that there are outlets for their feelings, that there is room in a space for their stories to be told, and that they will be applauded - and it's not about ego, it's about connection: that their pain is everybody else's pain.