I watched this movie/documentary at the cinema and I didn't like it much. Maybe my expectations were too high, but I found it uncomplete, too slow and not balanced. The idea to mix a modern part with an historical/artistic one was not good in my opinion: the actor alone in the room had nothing in common with Caravaggio and it seemed to me a bit unrelated to the rest of the movie.
I read the entire biography of the painter and I discovered many more things about his life and his works. The documentary doesn't really say anything new and the images are stressfully repeated.
Not a real documentary, not a biography and not a movie, it is an experiment not successful at all.