Instant Trivia
1_
Other titles under consideration for the film included ‘Who’s Been Sleeping In My Bed?’ and ‘Someone’s Been Sleeping In My Bed’.
2_
The Apartment spawned a porn parody, Breast And Beyond, starring Jon Dough, who also starred in another Wilder-inspired sex flick, Some Like It Big.
3_
Sam Mendes studied The Apartment as prep for American Beauty.