Plot
A professor experimenting in suspended animation accidentally shrinks his dog and later, his female lab assistant, when she drinks the liquid by accident and shrinks to 3 inches tall. The professor keeps her in his pocket until he can find an antidote. Sometimes she's naked, too.
Where to watch A Girl in a Pocket?
A Girl in a Pocket is a comedy movie featuring Jean Marais and directed by Pierre Kast.
It is possible to buy A Girl in a Pocket on Amazon Video.