Mario Casas , who underwent a significant physical transformation to play the emaciated Boix.

Boix was a Spanish Republican and photographer who was interned at the in Austria during World War II. Using his position in the camp's photographic laboratory, he and a group of fellow prisoners risked their lives to hide and smuggle out thousands of negatives documenting the horrific crimes committed by the SS. These photographs later became crucial evidence during the Nuremberg Trials to convict Nazi war criminals. Key Details Director: Mar Targarona.

You can watch the film on Netflix , where it is available for streaming.

The movie currently holds a on IMDb and is praised for highlighting a lesser-known chapter of the Holocaust involving Spanish prisoners.

The film is noted for its visual style, which often recreates real historical photographs taken within the camp.