But I had no idea what this would look like.

I thought a lot about whether I should ask Steven to be involved in the input.

But I thought, Well, hell know whats right.

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But it wasnt as uncomfortable as seeing myself normally on film, which I usually just cant bear.

I cant see what other people can see.

I tried to, but theyre all so busy you cant get through to them, he says.

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So I couldnt get through.

It all made sense after a while.

I think Steven asked me, Have you got the walk?

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And I thought, Oh, my God, whats the walk?

I didnt know what the walk was for a week or so.

And then Im a stepfather, and the biological father of my daughter, Chris, hes a runner.

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But when he walks, Chris, he doesnt do the cross swing that most of us do.

He does this wonderful kind of a lovely walk.

And I realized, this walk would be good for BFG.

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W.C. Fields advises against it, says Rylance, recalling the great comedians warning not to act opposite children.

And shes just a natural.

Shes just gifted at that.

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Shes not a trained actress, but she just really brought herself.

The person she really needed on the set was Steven.

I was just her tennis batting partner, in a way.

I was just the person she was hitting the ball to.

But I was still really excited to like, meet someone like that.

And so it was really nice to have that sort of a feeling.

And then Mark came up to me and said, Hi.

Its really nice to meet you.

Then we did some improvisation, and we did some scenes from the book.

They also ate the veggies Rylance had brought, which were meant to be props.

I had loads of fun.

So he was always very attentive that we were connecting, and there was a space between us.

The BFGis out in theaters today (Friday, July 1).

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