Which film holds the record for the longest theatrical run?

Still in limited release in 2023, some 48 years after its premiere, it is the longest-running theatrical release in film history. In many cities, live amateur shadow-casts act out the film as it is being shown and heavily draw upon a tradition of audience participation. The film is most often shown close to Halloween. Today, the film has a large international cult following and has been considered by many as one of the greatest musical films of all time. In 2005, it was selected for preservation in the United States National Film Registry by the Library of Congress as being "culturally, historically, or aesthetically significant."