British comic Max Bygraves plays a song-and-dance man who comes home from an 18-month stint in the navy to his American wife (Shirley Jones) and his toddler son and tries to get back into show business. When he does a good deed for a fellow entertainer, his son reveals to him that he can actually talk like an adult, but that he'll only talk to him and not his mother ("you know how women talk, it won't be long before everybody knows I can talk") and his dad uses his son's ability to play the stock market and get rich.
Bygraves' brash, loud, over-the-top character wears thin quickly, and his sudden bursting into a squealing, high-pitched, almost mad- scientist laugh makes his character even more annoying. Jones and Bygraves don't connect at all--you wonder what a sweet, gentle, girl like Jones' character could possibly see in a loud-mouthed, braying, not particularly bright idiot like Bygraves--and the scenes where Bobbikins talks aren't done very well at all. Jones warbles a few songs but they're syrupy, juvenile and forgettable.
The young boy who plays Bobbkins is adorable, but other than he and Shirley Jones--and a small but funny bit by Lionel Jeffries as a greedy stockbroker--there's really no reason to watch this picture.