CAREY MULLIGAN reveals posing for the front cover of American Vogue was a less than glamorous experience, filled with wardrobe mishaps.

“The cover dress was very pretty but wouldn’t go over my arse,” Mulligan tells the Daily Express. “Sample sizes are very, very tiny. I’m actually wearing a towel around my waist and the bottom is clipped up because I couldn’t fit.”

The An Education star features on the cover of October issue of the magazine, wearing a floral Chanel dress.