Bradley Cooper and Suki Waterhouse made for quite a stylish sight when they attended a London Fashion Week party on Monday alongside Bradley's stylish costar Sienna Miller and her main man, Tom Sturridge. The group was spotted chatting and laughing as they left a dinner at J. Sheekey. They were joined for their swanky meal by Anna Wintour and Vogue Editor at Large Hamish Bowles. Bradley and Suki didn't stop their Fashion Week partying after dinner as they dropped by another bash later that night where Suki met up with her model friend Cara Delevingne and her sister, Poppy Delevingne. While Bradley has been busy with filming for most of the year, he has been taking a backseat to his model girlfriend over the past few days while she works during her hometown's week of fashionable events.