Amid a crowded summer movie landscape, one film broke out to become of the biggest comedies of all time: Ghostbusters. A collaboration of some of the most celebrated voices in comedy, Ghostbusters spawned what has become an billion dollar franchise. Ghostbusters: Behind Closed Doors takes an inside look at how this movie came together from the people who were there. Ghostbusters’ director, producer, stars, and crew share stories from the making of iconic film and reflect on its success more than three decades later.