I have not watched the Phil Spector movie nor do I plan to. I would think your time would be better spent by reliving the music. Here are a few recommendations.
The Wrecking Crew-The story of the players behind that Wall of Sound.
Phil Spector co-produced John Lennon’s Imagine album. The documentary on the making of the album is fascinating. Just watch this clip of John singing “Gimme Some Truth”. The whole documentary is available to watch on YouTube.
YouTube is also a great place to see Phil Spector produced artists like The Ronettes,
or better yet, here’s the actually man in action…sort of…this is Phil on “I Dream Of Jeannie”
Better yet, just go Back To Mono and play the records.