Jack Lemmon Lemmon and director Billy Wilder made several great movies together, including 1959s Some Like it Hot and the 1960 Oscar-winning best film, The Apartment. Their collaborations were generally meant for adult audiences, but their 1972 romantic comedy Avanti! (pictured) is the first time the two ventured into R-rated territory. And Lemmon yipes! even goes naked a few times, including a skinny-dipping scene with his co-star Juliet Mills that finds the two getting out of the ocean and sitting au natural on a rock. Lemmon later said he felt uncomfortable going nude because he thought his fans would be shocked. He was right! There have been rumors, though, that he may have worn a flesh-colored body suit for that scene. The following year, he was naked getting into a shower in Save the Tiger, for which he won his second Academy Award.