Bodybuilding Legend Tom Platz 1st Movie Appearance + Jake, Tinerino, Kal

Happy (early) 4th of July & Happy 45th Anniversary of the release of "Americathon", a largely forgotten all-star summer movie flop that marked the first film appearance of bodybuilding legend Tom Platz & American success story Jake "Body by Jake" Seinfeld, plus credited appearances by pro bodybuilders Dennis Tinerino and Kalman Szkalak. Comment if you have thoughts on IDs of other participating bodybuilders, or anyone else. My apologies regarding the low-resolution of this submission.