dirty headlights how to clean?????

i have a 99 z28 6m, the only problem i have is there is a clowdy film on my front headlights. how do i clean/remove film. is there any product out there that can help me.thank you.

Zaino's Z-12 glass polish (I believe they are glass housings, otherwise get the Z-14 plastic polish).

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Solomon
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