The movie can only be so long, there is alot of people that "should" have been in it/in it more but there just isn't time for everyone. One thing though is why did they waste so much time on that cry baby loser Mike Katz who looked like crap or should I say a spider.
That's my point; the other guys interviewed other than Waller were setups. Wouldn't have effected the running time of the movie or hurt to have shown others, including Oliva training in Chicago, or more of Mentzer, Robinson & Padilla. It was advertised as a documentary to give it veracity, but largely departed from the book towards Weider, for cinematic purposes. Common in book-movie translations but they didn't have to go as far as they did.