The actress stole the spotlight in a sheer gown as she promoted the latest in the film franchise with her co-stars in London last night.
Mena, 33, wore a black draped dress that featured a sheer panel on the back, drawing attention to her large neck tattoo.
Mena wore her hair in an elegant up style, and wore simple black heels.
Mena's co-star Tara Reid was equally well turned-out in a Grecian-style black gown.
Is that a toe ring?????? Somehow I'm not surprised.