I think Mister Money is a main factor that decides what to include and what to skip in a documentary. BTM, Time, they choose to skip them in favor of the usual hits, succesful albums. A documentary focusing on these can easily reboost sale figures. It's hard to achieve that with BTM or Time, or so they think. It's the same reason they don't release their deluxe editions.
But it's dissapointing to we the fans to never watch details of those sessions, how she wrote those songs, etc.
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