Emma Watson, 19, was attacked by the same cruel wind that caused former Miss California Carrie Prejean‘s topless photos.

On the red carpet at the London premiere of “Harry Potter and the Half-Blood Prince,” Emma’s split skirt blew up and showed off her underwear.

She tells David Letterman that it could have been much worse.

The blushing Emma told Dave that this was “a small wardrobe malfunction that happens.”

“At least I’m wearing underwear,” she added, before hanging her head in her hands to say she’s “still learning” this stuff.

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Posted by:Elizabeth Snead