Olivia Munn showed off some serious cleavage at this year's GQ Men of the Year Awards in London Wednesday night, narrowly avoiding a wardrobe malfunction.

The 32-year-old actress, who wore a silver Giorgio Armani dress and Jimmy Choo shoes, presented the Writer of the Year award to Aaron Sorkin for his new HBO drama The Newsroom. Olivia stars on the show alongside Jeff Daniels, Sam Waterston and Dev Patel.

The 2012 award ceremony was held at London's Royal Opera House.

Olivia tweeted a photo of herself along with Sorkin after the show; writing, "Presenting Aaron Sorkin his GQ Writer of the Year Award was such an honor. Thank You @GQRecommends *high-five*"