Pretty good, in-depth documentary about Prince's career made in 2011 by the BBC. The 2nd part has a section where the voices are sped up and left with graphic bars over the picture, I guess to get around the copyright issues
NOTE: I had to change the audio pitch here and there and add the semi-transparent box to the end, because the original material is blocked worldwide - both the video and the audio. It is what it is - please no whinging about how "it's ruined."
Anyway, like the Jeff Buckley doc from about 8 years earlier, often these BBC ones cover more details. Both the last part talking about at least some of his 90's and 2000's stuff, and the 1st part telling more details about his beginnings, including what it was like for him growing up in Minneapolis in the late 60's and 70's.