Continuity mistake: While fishing, Mr. Peabody hooks a mermaid who is swimming underwater. When he reels her in and she leans over the edge of the boat, her hair is completely dry and perfectly coiffed.
Mr. Peabody and the Mermaid (1948)
1 continuity mistake
Directed by: Irving Pichel
Starring: William Powell, Andrea King, Ann Blyth, Irene Hervey
Revealing mistake: When Mr. Peabody is fishing, it is obvious that he is in a boat on the floor of a studio. Rear-screen projection is used to show the ocean behind him, but while he is standing in the boat and trying to reel in his catch, the boat is absolutely motionless.