Venice can feel like a movie set, particularly when riding on a boat down the Grand Canal with George Clooney.

Waving to fans, he's asked if that ever gets normal. "No," he replied.

George Clooney, with correspondent Seth Doane, in Venice. CBS News

Clooney has practice navigating this kind of attention. He's made about 50 films, picking up a couple of Academy Awards along the way (as an actor for "Syriana," and as a producer for "Argo"). And for his latest, "Jay Kelly," he plays one of the world's biggest movie stars – a familiar role.

He says it's true that he said yes to the film within 24 hours. "Well, I read it, and I was like, Well, if I take time to think of it, they might go get Brad. And I can't have that. I can't have that, man! When you read something, you know."

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