Grzimek
A portrait movie about the famous German zoo director, zoologist, book author, editor, and animal conservationist in postwar West-Germany.
Starring Ulrich Tukur, Barbara Auer, Katharina Schüttler, Christian Redl, Filip Peeters, Hannes Hellmann, Jerry Hoffmann, Luke Tyler, Martina Ysker, Jan Krauter
It's a documentary and history movie, and has a rating of 6.6 out of 10 from Imdb which is usually fine for this kind of movie.
Watch it here
Not found streaming from United States.