Holocaust survivor Ed Mosberg still wears a bracelet bearing his identification number from Mauthausen concentration camp. He and other survivors describe their lives during and after the Holocaust in new documentary "Destination Unknown".The film, compiled over the course of 14 years, is told through the accounts of twelve Holocaust survivors, some of whom return to the camps where they were imprisoned.Director Claire Ferguson said what made the film different from other films on the Holocaust was the subject of survivors trying to rebuild their lives after the Holocaust."What came across to me as unique and fresh was how do you live with pain? How do you have a life after such atrocity?" she said.The documentary follows the stories of Jews who were in hiding, those who fought in the Jewish resistance movement and those who survived imprisonment in concentration camps.Polish Jew Mietek Pemper also gives his account. He helped Oskar Schindler, subject of Steven Spielberg's 1993 film "Schindler's List", compile his list of Jews to work in his factory who were subsequently saved from death.Six million Jews died at the hands of the Nazis and their allies during the Holocaust, with many being sent to death camps after their possessions were seized.Mauthausen concentration camp survivor Mosberg said he wanted to contribute to the film so that younger generations would not forget what happened in the Holocaust."Not to forget, this is the whole thing... that next generation will still remember," he said.The film is out in UK cinemas on June 16. A date for global release of the film is yet to be confirmed.