The Clouded Yellow is a 1950 British mystery film directed by Ralph Thomas and produced by Betty E. Box for Carillon Films. It stars Jean Simmons and Trevor Howard. A dismissed secret service agent falls in love with a disturbed young woman who is wrongly accused of murder and the two go on the run, pursued by the police, the secret service, and the real murderer.

Betty Evelyn Box was a prolific British film producer, usually credited as Betty E. Box.