This documentary brings together a small assortment of genre fans and scholars to discuss the lasting legacy of “Suspiria,” which everyone seems to recognize as the pinnacle of Dario Argento’s career. The gang discusses story origins and influences, cinematographic achievements, the film’s thematic reach and dream logic, casting issues, murder sequences, Goblin’s scoring accomplishments, the oddball marketing push in America, and the picture’s continued hold on viewers 40 years after its release. (Blu-ray.com)