Relatively new to Youtube is this 2008 documentary in its three hour (!) entirety. I’ll admit I haven’t watched the whole thing yet so can’t vouch for quality, though it evidently touches on the whole beloved Krautrock spectrum. Hell, I’d watch a documentary about plumbing if it had something about Can in it, so I’ll be diving right into this one shortly.
(You can watch the rest of the documentary online HERE)