Curiosidades

He worked as a production assistant at Hammer Films. His duties included assistant director, second unit director and production manager. For an upcoming project, the head of Hammer suggested that Sangster try his hand at writing; if he liked Sangster's script, Hammer would buy it. This began his career as a writer, the profession he is best known for. His early scripts were not only for Hammer, but some of Hammer's competitors as well.

He sometimes wrote under the name John Sansom (Drácula, o Príncipe das Trevas (1966)) and James Sangster (Fábula Macabra (1972)).

Ralph Bates appeared in the three films that Sangster directed: O Horror de Frankenstein (1970), Luxúria de Vampiros (1971) and Terror na Noite (1972).