Get SmartDwayne Johnson (aka The Rock) explains the motivation behind his character Agent 23.

We all know Steve Carell has a gift for improv, but The Rock? Sure enough, Mr. Johnson, who plays Maxwell Smart's fellow tough-guy agent in 'Get Smart,' proves himself a comic genius -- or so he says, anyway -- in this behind-the-scenes vignette. And who are we to question him when he might staple our heads?

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