First time the character Perry Mason ever appeared on film.
The song "Dames," heard on the radio when Bessie Foley turns it on, is promoting the film of the same name released by Warners the same year.
The dog who played Prince in this film, Lightning is the grandson of the silent film canine star Strongheart the Dog.
First of six "Perry Mason" films from Warner Bros. released from 1934-37.