Sing Sing is a 1983 Italian comedy film directed by Sergio Corbucci.

It stars Adriano Celentano, Enrico Montesano and the British actress, Vanessa Redgrave.

A Rome mechanic becomes convinced that he is the son of the Queen of the United Kingdom (Redgrave).

[1] And an inspector has to protect a film dubber pursued by a psychopath.

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