Be Beautiful But Shut Up (French: Sois belle et tais-toi) is a French black-and-white crime comedy film made in 1958, directed by Marc Allégret.

The film features Alain Delon and Jean Paul Belmondo in early roles as members of a gang.

[3] The protagonist, played by Mylène Demongeot, is a teenage female orphan who after escaping from her detention center joins a gang of Parisian burglars, but then by coincidence meets a young police inspector (played by Henri Vidal) with whom she falls in love, marries and starts a decent life.

The story shows how her former acquaintances from the criminal milieu become suspects in a jewel robbery.

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