The Dallas Holocaust Museum/Center for Education and Tolerance will host a screening of the Alfred Hitchcock documentary, German Concentration Camps Factual Survey.

While the footage was first shot in 1945, the project was left unfinished for 70 years until it was discovered by a group of experts at the Imperial War Museum in the United Kingdom. The restored film debuted at the Berlin Film Festival in 2014 and will be shown at a limited number of screenings this year, including this Dallas Holocaust Museum event.

Hitchcock was brought on as an advisor by the film’s producer Sidney Bernstein and oversaw the film recordings depicted in the documentary at 10 different concentration camps and four other locations in Austria, Germany and Poland. The film gives viewers a rare, candid look into the horrific conditions and treatment that prisoners were subjected to at Nazi concentration camps.

Admission is free, though seating is limited. Anyone planning to attend must reserve tickets by emailing rsvp@dallasholocaustmuseum.org. Due to the graphic nature of the film, children under the age of 18 will not be admitted.