Development The film was co-produced by American screenwriter/producer
Bernard Gordon, who had moved to
Spain following the
Hollywood blacklist. He had previously collaborated with Martin on the 1972 film
Pancho Villa (which featured Savalas in the title role). Martin made
Horror Express as part of a three-picture contract he had with
Philip Yordan, and Savalas was under contract with Yordan as well. The film was a co-production between Spain's Granada Films and the British company
Benmar Productions, who made
Psychomania (1971). According to Martin, the film was made because a producer obtained a train set from
Nicholas and Alexandra (1971). "He came up with the idea of writing a script just so he would be able to use this prop," said Martin. "Now at that time, Phil was in the habit of buying up loads of short stories to adapt into screenplays, and the story for
Horror Express was originally based on a tale written by a little-known American scriptwriter and playwright." The credited writers,
Arnaud d'Usseau and Julien Zimet, were also American blacklistees who had relocated to Europe. They had previously written
Pancho Villa and
Psychomania for the producers. Rumors that the train sets were acquired from the production of
Doctor Zhivago (or
Nicholas and Alexandra) were countered by Gordon, who said in a 2000 interview that the model had been constructed for the
feature film Pancho Villa. Filmmakers used the mock-up from
Pancho Villa as the interior for all train cars during production. Since no further room was available on stage, all scenes within each train car were shot consecutively. The set was then modified for the next car's scenes. Securing Lee and Cushing was a coup for Gordon, since it lent an atmosphere reminiscent of the horror
Hammer Films, many of which starred both actors. When Cushing arrived in Madrid to begin work on the picture, he was still distraught over the recent death of his wife. He announced to Gordon that he could not do the film. With Gordon now desperate over the idea of losing one of his important stars, Lee stepped in and put Cushing at ease, simply by talking to his old friend about some of their previous work together; Cushing changed his mind and stayed on.
Music Horror Express features the debut film score of American musician
John Cacavas, who would later gain prominence for scoring
Telly Savalas' television series
Kojak. Cacavas met Savalas while working in London in the early 1970s, the two became friends and Savalas helped him move into film and television scoring. ==Release==