Photos of Sienna Miller at London's First Light Movie Awards

Sienna Shines at the First Light Movie Awards

Sienna Miller was in London last night to support the First Light Movie Awards, which honors up-and-coming young filmmakers. She shook hands with nominees and stopped to strike a few poses in her dress and twenty8twelve jacket. One of her own independent films, The Mysteries of Pittsburgh, just released a new trailer — but it's her big blockbuster GI Joe that actually has a release date. It hits screens this August 7, when we'll see what to make of all the early negative buzz.