Brad Pitt wasn't at the BAFTAs last night, but he won Best Supporting Actor and had his Once Upon a Time in Hollywood co-star Margot Robbie deliver his acceptance speech for him. (Pitt could not attend due to family obligations, although a source close to Pitt reassured Cosmopolitan UK that "nothing serious happened.") Pitt was kind enough to put a Brexit and Prince Harry joke in there, which Robbie had to say in front of Kate Middleton and Prince William.