This meme-able line in Elf almost didn't happen. Mark Acheson, the actor who is aptly credited as "Mailroom Guy" in the 2003 holiday classic, exclusively tells PEOPLE about working on the movie ...

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The best way to spread Christmas cheer is by improvising a quote people will remember for decades. "I'm in the flow, that's ...

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Would you like to do it?' And I said, 'Yeah, I'd be happy to do that,'" Acheson told People in an interview published Dec. 20. "I was only supposed to say ‘work release' and that was the end of it." ...