Comedy star Steve Carell was the world's worst postman before finding fame as an actor.

The 45-year-old actor started out delivering mail in his native Massachusetts, but confesses he let down the homeowners on his route.

He says, "I was a terrible mail person. I moved to Chicago months later and found mail from three or four months before underneath my seat.

"So it took me a while to finally get the mail in the right hands."