President Obama to Paul Rudd: I Loved You in 'I Love You, Man'

It's too bad Paul Rudd is married (for multiple reason) because if he had needed a best man in his wedding it sounds like President Barack Obama would be more than happy to step in!

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While Paul was filming How Do You Know with Reese Witherspoon in Washington D.C., the co-stars were able to get a private tour of the White House.

As part of Entertainment Weekly's cover story, Reese recalls what happened while they were on their tour.

“While we were getting a tour, we got a message from the Oval Office that Obama wanted to say hi to us,” she begins the story.

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“We went to the Oval Office, and there was Hillary Clinton having a meeting with Joe Biden. It was insane," she says. "Then Obama came out and he turned to Paul and said, ‘I loved you in I Love You, Man.’ "

"I grabbed Paul and I was like, ‘Are you freaking out right now?’ " she remembers. "He’s like, ‘I’m freaking out!’ We were so tongue-tied it was ridiculous."

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"Obama was like, ‘What are you guys doing in town?’ I started talking about the movie and I was like, ‘We’re doing a movie and… uh, I’m playing a character, who, uh…I’m working with Owen, uh…Owen…’ I could not remember Owen’s last name," Reese explains.