An Israeli documentary about four siblings who retrace their father's experiences during World War II, when he worked in the stone quarries of the Gusen concentration camp in Austria, has been bought by Austrian distribution company Timm Film.

David Fisher's "Six Million and One," which is showing now in Israeli theaters, will begin playing in Austria on May 12, in eight theaters in different parts of the country.

Open gallery view The Fisher siblings, from left: David, Gideon, Estee and Ronel.

"This is the most important film to show in Austria this year," said Andreas Timm, a Timm Film official who first saw the documentary, the final part of a trilogy, at the Berlin International Film Festival in February. "This is the first serious film that points to the responsibility that we, the Austrians, must take in the face of the events of World War II."

Timm said he plans to get the film broadcast on Austrian television and distribute it to schools and universities in the country, along with explanatory material about Austria's responsibility for what took place within its borders.

Open gallery view David Fisher Credit: David Bachar

In "Six Million and One," the director rents a minivan, along with his sister and two brothers, to retrace Joseph Fisher's experiences in the Holocaust. The journey and resulting film are based on a memoir by the elder Fisher that was discovered only after his death.

The film focuses on the dynamic between the siblings and the way they grapple with their family history, and is critical of Austria and the way it has dealt with memorializing the Holocaust.

In the documentary, the director contemplates the quiet town of Gusen, which was built on the remains of the concentration camp where his father was sent. Few indications of the past remain.