House star Olivia Wilde looked stunning in a long red evening gown with a plunging neckline and floral waistline at the 2011 LACMA (Los Angeles County Museum of Art) Art + Film Gala Honoring legendary actor/director Clint Eastwood and conceptual artist John Baldessari. She complemented the dress with a pair of black open-toe heels and a black clutch.

The event was presented by Gucci and held at the Los Angeles County Museum of Art in L.A. on Saturday night, where the director and artist were honored for their career achievements in art and film.

Olivia's red dress is a far cry from what she wore earlier in the day - opting for a pair of grey sweatpants and a fisherman's sweater while hiking with a friend at the city's Griffith Park.Unfortunately, Olivia's new film, In Time, didn't score well with our Two Jews on Film. They say it's a waste of time (review). There is one good thing though - more pics of Olivia in a slinky black dress (here).