Continuity mistake: In the opening exterior shot of the train, it has at least six brown and green carriages. However, in the next exterior shot, the train is made up of three brown and cream carriages.
Continuity mistake: When Danny Kincaid is at the beach, he is wearing green shorts when he is taking his shirt and shoes off, but he has blue and black shorts on when he goes into the water. (00:19:00)
The song Angela Lansbury sings, "Little Yellow Bird," when she plays musical hall performer Emma, is the same song she sang in the 1945 film The Picture of Dorian Gray, when she played music hall performer Sybil Vane.