This jumped out at me and I want to make a correction.
The actors in that film trained at a gym called Gym Jones, run by Mark Twight, one of the strongest American alpine climbers of his day. The directors wanted them to look sinewy and jacked, not big, so they put them on a caloric restriction diet (they had to do reps to earn food, on a schedule designed for weight loss). The actual exercises they had to do were changed constantly to prevent their bodies from becoming accustomed to any one thing, so there really is no "300 workout" at all.
The actors in that film trained at a gym called Gym Jones, run by Mark Twight, one of the strongest American alpine climbers of his day. The directors wanted them to look sinewy and jacked, not big, so they put them on a caloric restriction diet (they had to do reps to earn food, on a schedule designed for weight loss). The actual exercises they had to do were changed constantly to prevent their bodies from becoming accustomed to any one thing, so there really is no "300 workout" at all.
He's got a good informational post about it here: http://gymjones.com/knowledge/article/3/.