"Black Sunday" is a 1977 thriller film directed by John Frankenheimer, based on the novel by Thomas Harris. The story revolves around a terrorist plot to attack the Super Bowl using a blimp filled with explosives. The film explores themes of fear, security, and the impact of terrorism on society. The main characters include Dahlia, a former Viet Cong operative, and Mike Lander, a security expert. As the event approaches, they race against time to prevent the catastrophic attack. The film features intense action sequences and a gripping narrative that highlights the vulnerabilities of public events.