The Last Script: Remembering Luis Buñuel
El último guión. Buñuel en la memoria (original)
A loosely chronological visual “scrapbook” marking the 25th anniversary of the death of Luis Buñuel
Starring Juan Luis Buñuel, Jean-Claude Carrière, Ángela Molina
It's a documentary movie, and has a rating of 7.2 out of 10 from Imdb which is usually fine for this kind of movie.
Watch it here
Not found streaming from Germany.