Karen Allen in Until September (1984)

Director Steven Spielberg, producer George Lucas and star Harrison Ford team up for a fourth go-round in their signature whip-cracking adventure series, Indiana Jones and the Kingdom of the Crystal Skull (2008). Also returning is Karen Allen, playing her character Marion Ravenwood from the original installment Raiders of the Lost Ark (1981). Don't count on Karen baring here, though. Fortunately, she boasts a swell body of earlier naked work, include a classic butt flash in Animal House (1978), and repeated revelations in the romantic drama Until September, the highlight of which is a T&A intensive sex romp at the 42-minute mark.

Mr. Skin

Check out all Karen Allen's nude scenes at MrSkin.com