Watch the Pumping Iron DVD. Arnold was rude to Lou Ferrigno for no reason. Arnold was Lou's icon and Arnold was rude, arrogant and cocky for no reason. Lou was not a threat to Arnold. Arnold was going to win either way. He didnt need to be rude.
What do you mean for no reason?
Arnold had to be the villian because Lou wasn't capable of being one, Arnold's input was brilliant which made the movie controversial and exiciting to watch. It also showed he had charisma and personality which is essential in hollywood.
It wouldn't be entertaining if everyone was nice to each other