This Day in Halloween: Mario Bava’s anthology horror film "Black Sabbath" starring Boris Karloff opens in the U.S. in 1964. / Illustration by Cesar Arias
Black Sabbathopens in the U.S. in 1964. Mario Bava’s anthology horror film stars Boris Karloff, who contracted pneumonia during the production. The film is still regarded as one of Italy’s best horror films.