When we were filming 'The Darkest Hour ' we didn't even know what the aliens were going to look like we didn't even have a graphic reference. So it was definitely a big challenge to sell those kind of extreme moments when you're just generating them from your own imagination.
At the moment I'm doing this space movie so I'm obsessed with physics and space travel. I know three months down the line it's gone. Then I'll be able to superficially say stuff about space.
