No movie has ever been able to provide a catharsis for the Holocaust, and I suspect none will ever be able to provide one for 9/11. Such subjects overwhelm art.
The possibilities of the art of combination are not infinite, but they tend to be frightful.
I think art is good at looking back and looking forward. I don't think art is good at looking head-on. At the end of the day, people are more important than paintings.
I stay away from the arts... writing songs, being creative - those are downloads from God. You can't do data analytics on art.
Now the images and temples constructed by mechanics are made of inert matter, so that they too are inert, material, and profane. Even if you perfect the art, it partakes of mechanical coarseness. Works of art cannot then be sacred and divine.
I don't label films or actors, and labelling means setting boundaries. Why do you want to do that to art?
Art will not solve your problems. It will not enable you to live merrily.
Art is good but it isn't the best.