What is "tell it to the marines"

phr. (context idiomatic English) I do not believe what you said.

Tell It to the Marines is a 1926 silent movie starring Lon Chaney, William Haines and Eleanor Boardman, and directed by George W. Hill. The film follows a Marine recruit and the sergeant who trains him, and was the biggest box office success of Chaney's career and the second biggest moneymaker of 1926/1927.

In April 2012 the film became available on DVD from the Warner Archive collection.

"Tell it to the Marines" is a catchphrase, originally with reference to Britain's Royal Marines, connoting that the person addressed is not to be believed ("tell it to the marines because the sailors won't believe you").

Tell It to the Marines was a British sitcom that aired on ITV from 1959 to 1960. The series was based on the rivalry between the Marines and the Royal Navy. The series no longer exists.