Siah Baz (فیلم ایرانی سیاه باز) is a film in the social genre produced in 1399, directed by “Hamid Hemmati”. In this film, actors such as “Sam Gharibian”, “Afsaneh Baygan”, “Shahed Ahmadlou”, “Atila Pesyani” and … have played roles. The film participated in the 39th Fajr Film Festival. Black Open, which has a social theme, addresses the issue of bitcoin. This movie is the story of a person who works in Bitcoin. His activity inadvertently causes him to enter adventures that change his life.