Your Sister's Sister (2011)

"Your Sister's Sister" is a 2011 indie dramedy that traps three people in a remote cabin and lets old secrets surface between them. Rosemarie Dewitt plays one of the leads caught in the fallout, and the site holds 2 scenes pulled from the film showing her nude and in a sex scene. It's a small entry in the archive, built around a single actress rather than a wide cast, so the count stays low but the material is specific to her.