A strange documentary on Grothendieck: the editing is awful, some interviews are valueless, the author (Yves Le Pestipon) is doing some dumpster diving… Nevertheless, there is some interesting information on Grothendieck.
French: https://www.youtube.com/watch?v=4dV5YXwb7zg
English subtitles: https://www.youtube.com/watch?v=9GanmnPniO8