Wowzers! Last night at the London premiere of Prometheus (a prequel to Sir Ridley Scott's 1979 film Alien), Charlize Theron looked incredible in a strapless midnight blue beaded dress and strappy chain sandals, both by Dior. A daring thigh split showed off those perfect pins.We can't say we would be brave enough, but Charlize has got it, so why shouldn't she flaunt it? Keeping her look minimal and chic, Charlize chose to accessorise with simple jewellery, and kept her hair and make-up natural and elegant. Keep doing what you're doing, Charlize! In the meantime, we've been shopping and found this dress from Jules B (which is in the sale, hooray!) so you can steal her style for a fraction of the price.