A shot of the outside of a New York building shows many modern window air-conditioners, although this was supposed to be the 1930s or 1940s.
When Frances is at the party and is warned that she's being "bugged" by the Feds, a boom mic is clearly visible over her head.
Among the framed portraits of actresses under contract to Paramount Pictures hanging on Mr. Bebe's office walls is one of Joan Crawford. But Crawford was an MGM contract player at the time portrayed in the scene and never worked for Paramount.
The clapper board for "Flowing Gold" shows Paramount as production company. "Flowing Gold" was produced by Warner Bros.
The recreated movie marquee for "Come and Get It" incorrectly spells Joel McCrea's name as McCrae.