Belle of Old Mexico is a 1950 American Trucolor comedy film directed by Robert G. Springsteen and starring Estelita Rodriguez, Robert Rockwell and Dorothy Patrick. The film was successful at the box office, and Republic Pictures hoped to transform Rodriguez into a star similar to Lupe Vélez.
An American World War II veteran fulfills a promise that he had made to a dying comrade by going to Mexico to adopt the dead man's daughter. However, the daughter is not a child but an attractive young woman. He faces difficulty convincing his fiancée and employers that the relationship is entirely innocent.