This is not a movie about a rock star with their music simply part of the facts of the story. It is a musical in the truest sense, that uses his own music to show his tribulations through the eyes of a man during the troubled years of his life. The movie is not always chronological and in some cases is more figurative than historical. In this way it can convey Sir Elton John's life and struggles in a way that the viewer may understand on a more personal level. The acting, writing and singing are superb.
The star did not try to truly imitate Elton but instead preforned the pieces in his own style that he molded as closely as possible to the original. It sounds odd, but it works.
As always you can never sum up any life, book or story in a 2 or so hour movie, but this comes close. You leave feeling like you really got to know the real, yet flawed, human Elton John. Overall a wonderful movie.