Over the weekend, the actress who will soon appear in The Grand Budapest Hotel attended the 2013 BFI London Film Festival Awards. For the red carpet occasion, Ronan wore a tailored suit by the Kooples in a delightful plum shade, complete with velvet lapels. Instead of opting to go topless beneath her tux, she wore a sheer lace top also in a burgundy tone, and added lacy black peep-toe Nicholas Kirkwood heels. With her blonde hair down and minimal touch of makeup, Ronan effortlessly pulled off the androgynous-chic look. If she just purchases a top hat, she can channel Willy Wonka on Halloween.