Le Cop on Le Rocks

Inspector Clouseau is wrongly convicted of a crime committed by his lookalike. He is put into prison where he tries to break out so that he can find his lookalike and clear his own name, but all his escape attempts fail, and each time, a no-nonsense warden assigns additional years of imprisonment to the hapless Clouseau. Finally, Clouseau learns he will be granted freedom if he can pound one rock into pebbles-and it's the Rock of Gibraltar.