Most movie continuity mistakes of 1978

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Superman picture
Jaws 2 picture
Grease picture
Death on the Nile picture
Halloween picture
Animal House picture
Dawn of the Dead picture
Cheech and Chong's Up In Smoke picture
I Spit On Your Grave picture
The Driver picture
Avalanche picture
The Deer Hunter picture
Hooper picture
The Swarm picture
Revenge of the Pink Panther picture
The Cheap Detective picture
The Wiz picture
Convoy picture
Heaven Can Wait picture
Piranha picture