Emma Watson: At Least I Wore Underwear

Emma Watson has brushed off her embarrassing wardrobe malfunction at Tuesday's "Harry Potter" premiere in London, insisting it could have been a lot worse.The 19-year-old star braved torrential rain on the red carpet during the world premiere of "Harry Potter and the Half-Blood Prince," alongside co-stars Daniel Radcliffe and Rupert Grint.She was snapped by photographers accidentally flashing her panties to hundreds of fans and the world's press as she tried to gather her dress up to avoid stepping on the hem.But she has laughed off the incident and insists it could have been worse.The 19-year-old actress explained the moment to David Letterman Wednesday night."Tell us what's going on here," he said as he held up a picture of the incident."This was a small wardrobe malfunction, it happens."At least I'm wearing underwear," the 19-year-old star added, before hanging her head in her hands to say, "I'm still learning, I'm still learning!"