There are places where life could exist. And we've already discovered that there's been life on certain planets that we've explored. That may just be algae or whatever, but life on Earth began a certain way, too.

As an artist, it's a great opportunity to play a character like this [Ugandan dictator Idi Amin in The Last King of Scotland]. And then, as a person, I had never been to the African continent. So, I knew, personally, it would reshape me.

I think the place fed me completely. Not only was I in Uganda, but I was around many people who had a personal relationship with Idi Amin. I was eating the food constantly. I was culturally hanging out with the people. You can't help but absorb the energy, and try to get inside the culture.

I was trying to capture this man's [Idi Amin] energy, and I did a lot of research in studying him. I tried to capture his 'Warrior King' energy inside of me as much as possible.

Because I was playing Idi Amin, who dealt with the colonisation issue, I became aware of this internalised conflict of what it means to be torn between cultures, what it means to be taken over by other cultures.

I can play a man who's despicable. But I'll still look inside him to find a point of connection. If I can find that kernel, audiences will relate to me.

I do believe there's life other than on our planet.