Weinberg's father Moshe Weinberg was killed in the Munich massacre by Palestinian terrorist group Black September at the 1972 Summer Olympics in Munich, Germany, when Weinberg was one month old. His father had been attending the Olympics as part of the Israeli wrestling team, due to his position as the national wrestling coach. In regards to his father's death, Weinberg has said in an interview: "I was angry with him for many years...I thought that if he hadn't tried to fight them, maybe I would have had a father." He refers to his father's reported protesting against his terrorist captors, which led to them shooting him and leaving his body in the street whilst they took other team members hostage. Weinberg later played the role of his father Moshe in Steven Spielberg's 2005 film "Munich", which was based on the massacre as well as on the book "Vengeance" by George Jonas. Despite her son appearing in the film, Weinberg's mother Mimi has expressed her frustration at Spielberg's portrayal of the events and people involved, stating she "[doesn't] want people to see it, even if [her] son is in it."