Hi Paul.....yes, I would have liked to see more of the "musical side" of him too. But, I think, to understand and appreciate his music you need to know where he's coming from.....the emotional pain and lack of parental love came out in the songs he wrote. After the movie, I went over his list of songs and noticed common denominators....sadness (in general) and a reaching out for genuine love and his wrestling with his bisexuality and eventual homosexuality. Almost every one of his songs had something to say about Elton John the person and not Elton John the genius songwriter or Elton John the flamboyant entertainer.
After seeing the movie, I explored a lot on the Net about him. I found the man to be a fabulous study in all areas of his life. My personal opinion is all musicians have to suffer in their own personal lives to be great artists. Tchaikovsky wrote some of the world's most beautiful music but he paid the price for it by being tormented with his own emotional problems that he suffered with all his life.
Any rate....I'm now a "born-again" Elton John fan!