Question: Day of the Dead 2: Contagium is an unofficial sequel to a film directed by who?
Sentence (from "Black Emanuelle 2"): Black Emanuelle 2 (Italian: "Emanuelle nera n° 2"), also known as "The New Black Emanuelle", is a 1976 Italian psychological drama-sexploitation film directed by Bitto Albertini.
Relevant evidence: No