In the middle of the night I woke up and it hit me. "Obama."

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Spielberg: I mean the guy's already a lame duck. So why wait?

Picking the right actor to play Obama, that was the challenge. I mean, who is Obama, really?

We don't know. We never got his transcripts, and uh, they say he's kind of aloof.

So I needed someone who could kind of dive in and really become Barack Obama.

And as it turns out the answer was right in front of me all along: Daniel Day Lewis.

He becomes his characters. Hawkeye, from Last of the Mohicans,

and Bill the butcher from Gangs of New York,

and Abraham Lincoln in 'Lincoln.'

And you know what, he nailed it!

Was it hard playing Obama? I'll be honest, yeah it was.

His accent, took a while.

"Hello, Ohio! Hello, Ohio, I love you back! Look...Look...let me be clear about this."

The cosmetics were challenging. I mean, you wouldn't believe how long it takes to put these ears on in the

morning. I don't know how he walks around with these things.

Spielberg: But once we had Daniel to play Obama, we had to cast the rest of his team,

and I think we've got some pretty terrific performances.

Working with a legend like Daniel is intimidating. But he makes everyone better. You know, without him,

I never could have played Joe Biden. Literally, "Hi, I'm Joe Biden."

The hardest part? Trying to understand his motivations.

Why did he pursue healthcare first? What makes him tick? Why doesn't he get mad?

If I were him, I'd be mad all the time. But I'm not him. I'm Daniel Day Lewis.

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