Emma Watson Reveals a Little Too Much At ‘Perks of Being a Wallflower’ Premiere (PHOTOS)

Celebrity Side-Boobs
Stars show off some sexy side cleavage
These celebs show plenty of skin.
Emma Watson let it all hang out — well, almost —  at Monday night’s premiere of her new movie The Perks of Being A Wallflower.

The 22-year-old was left red-faced after her dress shifted, leaving her left breast exposed. She barely managed to preserve her modesty with a carefully placed nipple cover.

How did she react to her wardrobe malfunction?

Dressed in a stunning floor-length, backless gown, Watson was unaware of her revelation as she posed for cameras on the red carpet of the event, held at the Arclight Theater in Hollywood, Calif.

However, she soon picked up on her hiccup and adjusted her outfit — smiling her way through interviews and more photos.

Watson has come a long way since her role as geeky Hermione Granger in the Harry Potter movies. The actress plays a high school student who finds love with a shy classmate in her new film.

She proudly boasted of the movie’s success at the Toronto Film Festival when she tweeted how happy she was that it got a standing ovation at its screening.