If you like that type of documentary, I recommend another called "Standing in the Shadows of Motown" about the mostly anonymous studio musicians who played on a ridiculous number of Motown and Pop tracks from 1959 - 1972.
"The Funk Brothers produced more hits than The Beatles, The Rolling Stones, The Beach Boys and Elvis Presley combined." [0]
[0] https://en.wikipedia.org/wiki/Standing_in_the_Shadows_of_Mot...