The MPAA’s classification and rating appeals board has upheld the R rating given to the Holocaust documentary A Film Unfinished.

Distributor Oscilloscope spoke out against the rating earlier this week when company head Adam Yauch said a difficult rating might prevent children from learning about an important episode in history.

However the MPAA upheld the R rating for “disturbing images of Holocaust atrocities, including graphic nudity.”

The film’s director Yael Hersonski and Oscilloscope publicity manager Lauren Schwartz attended the appeal hearing and read a letter from Hanna Abrutsky, one of the Holocaust survivors featured in the film.

The classification and rating administration was represented by chairman Joan Graves.