They should make a new movie...
...about Phil in his prime. Maybe start in the early 60s being a nobody to the development of his Wall Of Sound then his decline when the Beatles took over. No need to follow his depressing life in the later decades.
There are enough stories about his personality to make it quite entertaining. Imagine people playing the Wrecking Crew, Sonny and Cher, the Righteous Brothers, Beach Boys etc. I think it could be an cool flashback to an amazing time.