The Apartment

Billy Wilder originally thought of the idea for the film after seeing Brief Encounter (1945) and wondering about the plight of a character unseen in that film -- the person who lends his apartment for an extramarital tryst. Shirley MacLaine was only given forty pages of the script because Wilder didn't want her to know how the story would turn out. She thought it was because the script wasn't finished.

The layout of Baxter's apartment makes no sense, especially in relation to Dr. Dreyfus's apartment. Dreyfus lives next to Baxter, which means their walls should be adjoining the full length of both flats. However, from inside Baxter's living room, one can see windows in both his kitchen and bedroom facing directly where the Dreyfus apartment should be (and there would likely be a window in the bathroom between the kitchen and bedroom). Dreyfus's apartment would have to veer immediately off to the extreme right when one enters it and be no more than a couple of inches wide in order to allow the kind of set-up seen in Baxter's apartment. This is clearly unrealistic, if not downright impossible.

The 1997 VHS contained the short version of United Artists' 1987 variant.