Comradeship
Kameradschaft (original)
The picture tells of a mine disaster where German miners rescue French miners from an undergound fire and explosion. The story takes place in the Lorraine/Saar region, along the border between France and Germany.
Starring Alexander Granach, Fritz Kampers, Ernst Busch, Elisabeth Wendt, Gustav Püttjer, Oskar Höcker, Daniel Mendaille, Georges Charlia, Andrée Ducret, Alex Bernard
Watch "Comradeship" from streaming services HBO Max, Criterion Channel, Amazon released in 1931. It's a drama movie, and has a rating of 7.5 out of 10 from Imdb which is usually fine for this kind of movie.