Without a thematic through-line, this film is disjointed and detached in its soulless attempt to span an illustrious lifetime and 50 years of music. It simply lacks an emotional core--however Chadwick Boseman exceeds expectations in delivering a fearless committed performance.
Unfortunately this film's premise did not meet my expectations--although William H. Macy is as provocative as ever. Two ensemble roles were miscast IMHO: Donald Sutherland was interesting as a hit man's father but just didn't add any depth to his role, and Tracy Ullman is flat out flat--disappointingly so in a crucial scene between lying husband and suspecting wife.
I needed to see more at stake for my lead character: more to lose if he murders his psychiatrist (John Ritter) and more budding intimacy with his mistress (Neve Campbell) who delivers the most remarkable performance in the film.