This is one of few films that captures the Who on tour as they originally were.  There are no "substitutes" on this film.  They play a collection of their early hits, including "I Can't Explain," "My Generation," "Magic Bus" and more.  They also give an outstanding performance of "Tommy."  Everyone in the Who had their part: Pete with his windmill, Roger with his twirling microphone, John with his incredibly fast bass playing, and Keith giving it all he's got on drums.  This is a great film.