Visible crew/equipment: Randomly, a big moving shadow is cast on the underside of the flight of stairs between Daxter's apartment and the (unseen) second floor when he is unlocking the door of his flat after meeting his landlady that warned him about gas. It does not match Jack Lemmon's motions. (01:37:10)
The Apartment (1960)
1 visible crew/equipment mistake
Directed by: Billy Wilder
Starring: Shirley MacLaine, Jack Lemmon, Fred MacMurray, Ray Walston
Factual error: At the end of the scene where CC Baxter meets the doctor for the first time in the hall, Baxter is standing in the doorway of his apartment as the doctor enters his own apartment. From that view, you can see into Baxter's kitchen, which has a window - right where the apartment the doctor just entered is located. That could not be an outside wall.
C.C. Baxter: The mirror... It's broken.
Fran Kubelik: Yes, I know. I like it that way. Makes me look the way I feel.
Trivia: The last black and white movie to win the Best Picture Oscar, until The Artist in 2011.