Dwayne Johnson was seriously ill when he shot his part inThe Mummy Returns

Hewas just starting to explode.

And, its true, you cant fake that usually.

Hed never been in a movie or done anything like that.

He flew into Morocco on Wednesday.

On Thursday, he had hair and makeup and wardrobe.

And I shot him on Friday.

I only shot him for one day.

He arrives on the set Friday morning and Dwayne had really bad food poisoning and heatstroke.

And he is such a trooper.

We cant wait for you to get well!

He goes, just get the camera rolling, and as soon as I hear Background Ill jump up.

And thats what he did.

We did, …and background!

All the extras start going and I go, Action!

and Dwayne, he threw off the blankets and charged forward.

And we just went all day.

That guy gutted it out, because he was just amess.

Watch the trailer forThe Mummy Returns, above.