Rumble: The Indians Who Rocked the World
Starring Robbie Robertson, Buffy Sainte-Marie, John Trudell, Link Wray, Taj Mahal, Martin Scorsese, Tony Bennett, Steven Tyler, Iggy Pop, Pura Fe (Ulali)
It's a documentary and music movie, and has a rating of 7.8 out of 10 from Imdb which is usually fine for this kind of movie.
Watch it here
Not found streaming from Germany.