Emma Watson Discusses Wardrobe Malfunction with Dave

Emma Watson, Hermione in the "Harry Potter" films, appeared on "Late Night" with David Letterman Wednesday night to promote the latest episode in the series.

David Letterman took the time to embarrass Watson somewhat, showing a picture of a wardrobe malfunction that took place on Tuesday inn London, as when readjusting her dress she accidentally showed a flash of underwear.

"Tell us what's going on here, Emma. Whoa" said Letterman as he held up a picture of the incident.

"This was a small wardrobe malfunction, it happens, um. I don't think I remember when this happens. At least I'm wearing underwear. I'm still learning, I'm still learning!"

Letterman replied: "You make an excellent, excellent point."

It was unclear if Watson meant she was still learning to "go commando" as some Hollywood celebs like Lindsday Lohan or Britney Spears are wont to do.

Watch the video.