No one has greater "control" either. Not when 100 million plus is on the line
Amen to that. Still, some movies have turned out better than others, suggesting that some variation in decision and product quality is possible within the stringent limits of the movie production process while maintaining profitability.
I know what that process is. Generally, there are those with money but no creativity, making, or attempting to make, creative decisions. For movies and TV shows, before actor selection and before the first scene is shot, it's all laid out in black and white in a series of storyboards. Imagine a black and white comic book. Producers look these over and say things like, "How much is that scene going to cost me?" Some are willing to take a risk, most are not. That's all there is to it.
Before release, a movie is prescreened to a small audience of 'average' moviegoers. Afterwards, they tell whoever is in charge what they like and don't like. Then fans hear about reshoots and a delay. In the end, even the producers yield to that. But that still doesn't explain failures like the last Terminator movie. None of the trailers impressed me, and I have a creative background. Why James Cameron attached his name to this... The marketing... Nothing made me feel like this was going to be any good.