Barely a feature film in length, this story about a rookie cop -- hence the name -- who believes his dog would be an asset to the police department, an idea that is vehemently opposed by the police commissioner.
Ace the Wonder Dog plays "Ace" -- like Roy Rogers, Gene Autry, and some other stars, his character keeps his name -- and probably even does his own stunts. He is a "wonder" to watch.
On the dog's first "case," circumstances conspire to thwart the dog's testimony and he is forbidden to be around the rookie, played beautifully by Tim Holt, when the young officer is on duty.
The rookie's next-door neighbor is played by the amazing Virginia Weidler, not only one of the greatest child performers but simply one of the greatest actresses in Hollywood history.
Whenever she is in a scene, she steals it.
She is accompanied by "Springtime," a cute little four-legged furball who is not given screen credit, and not identified here at IMDb.
All the other players deserve credit, even praise. Tom London gives another of his excellent portrayals, to name just one of the many uncredited members of a great cast.
Script-writer, director, cinematographer -- great work from all of them. "Rookie Cop" is a little gem and I hope you get a chance to see it.