Ed Harris was reportedly obsessed about making "Pollock" before he could finally make it a reality. He plays the painter in the movie. Why would he feel such a lure to this character? I suspect he felt more of a lure to Hollywood accolades. Sorry for such a cynical thought, but movies that tell the story of troubled, "complicated" artists in American history seem to have an edge for getting accolades. If you can separate this "formula" from the actual movie, you might not think the movie is that good.
John C. Reilly recognized that formula. That's why he came out with a biting satire - he eviscerated it - with his movie "Walk Hard." It was a satire on "Walk the Line," the biopic about Johnny Cash. I watched "Walk Hard" when it was making the rounds at theaters.
Usually you can leave the theater with some reverence about such a subject even though the movie depicts the troublesome things. The nature of Pollock's death cannot be overlooked.
Pollock had some meteoric fame as an artist. He gave us a generous dose of "modern" art. Right away a whole lot of biases kick in when you hear the term "modern art." That's if you're like me.
Again, "art" is to be judged by the emotional impact on the viewer.
Why did Mangione come to the forefront? It was because radio DJs had gotten sick of the BeeGees. Yes! They were looking for something that would represent a complete departure. So we got "Feel so Good" on the charts from Mr. Mangione, the slightly-built brass player who seemed to struggle reaching the high notes. His life probably won't warrant a biopic.
The sad thing about these movies is that they don't tell us enough about the earlier stages in these guys' lives when they were working hard, not abusing alcohol or drugs, getting their proper amount of sleep and building their craft. We see too much of the oddball phase of their lives as they near falling off a cliff.