Who knew that Cressida Bonas was so light on her feet? The former Prince Harry paramour took a break from clutching acid-green smoothies to film a promotional dance video for Mulberry, The Telegraph reports. Apparently, her terpsichorean performance at the University of Leeds was spotted by some head honchos for the brand, who liked what they saw and cast her in the 30-second ad spot. The clip premieres in March, but Keira Knightley, Marion Cotillard, Eddie Redmayne, and Cara Delevingne were among those attending an advance screening in L.A. this weekend. Bonas co-stars with actor Freddie Fox, whom The Telegraph strenuously insists she is not dating. Good thing they cleared that up.