Roman Polanski revisits the ‘horror’ of his Holocaust childhood in a new documentary that premiered Sunday in the controversial Oscar-winning director’s Polish hometown of Krakow. The film follows Polanski as he roams the city with his lifelong friend and fellow Holocaust survivor, photographer Ryszard Horowitz, whom he met inside the wartime Jewish ghetto. The documentary is about “memory, confrontations with the past, transience, trauma, fate,” said Mateusz Kudla, who directed and produced the movie with Anna Kokoszka-Romer.