"Black Sunday" is a 1971 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 member of the terrorist group, and Mike Lander, a former Vietnam War veteran who becomes involved in thwarting the attack. The film features intense action sequences and a suspenseful narrative, highlighting the race against time to prevent disaster during the high-profile sporting event.