Added: Today
An excerpt from Hercules (1984), starring Lou Ferrigno
The movie is profoundly bad. No discernible acting or directing. Made several years after the original Star Wars (so we know they knew what special effects could be), yet rises no higher in production value than Ed Wood's "Plan 9 From Outer Space".
But nobody cared -- we watched simply for the pec-tacular sight of mostly-naked alpha muscle Lou Ferrigno. As awful as it was, the movie actually made enough money to justify a sequel. Muscle sells.