Clad in an elegant tiered black-lace dress, the actress attempted to gracefully step into her car to head home from the Chateau Marmont. expertly navigating the precarious trek in sky-high heels. Unfortunately, as Seyfried turned away to finish the maneuver, the paps' flashbulbs—combined with the dress' sheer material—gave onlookers a wee bit more to see of the willowy star. Oops.

This was actually the second dress that Seyfried wore last night, having stepped out earlier in a sleek strapless Zac Posen number for the awards show itself.

Hey, at least Seyfried and the Les Mis cast had a good reason to celebrate at the festivities: Costar Anne Hathaway snagged SAG's best-supporting-actress award, cementing her as the frontrunner at next month's Oscars.