Question: Who wrote the film that a 1982 American erotic horror film directed by Paul Schrader was loosely based on and was  a 1942 horror film produced by Val Lewton?

Context articles: Cat People (1942 film)
The Body Snatcher (film)
Cat People (1982 film)
Apache Drums
Paul Schrader
I Walked with a Zombie
Val Lewton
Isle of the Dead (film)
Frances Dee
The Seventh Victim

Cat People is a 1942 horror film produced by Val Lewton and directed by Jacques Tourneur.
 DeWitt Bodeen wrote the original screenplay, which was based on Val Lewton's short story "The Bagheeta", published in 1930.
 The film stars Simone Simon, Kent Smith, Jane Randolph and Tom Conway.
The Body Snatcher is a 1945 horror film directed by Robert Wise based on the short story "The Body Snatcher" by Robert Louis Stevenson.
 The film's producer Val Lewton helped adapt the story for the screen, writing under the pen name of "Carlos Keith".
 The film was marketed with the tagline "The screen's last word in shock sensation!"
 The frequent mentions of Burke, Hare, and Dr. Knox, all refer to the West Port murders in 1828.
Cat People is a 1982 American erotic horror film directed by Paul Schrader.
 It stars Nastassja Kinski and Malcolm McDowell; John Heard, Annette O'Toole, Ruby Dee, Ed Begley, Jr., Scott Paulin, and Frankie Faison play supporting roles.
 Jerry Bruckheimer served as executive producer.
 Alan Ormsby wrote the screenplay, basing it loosely on the story by DeWitt Bodeen, the screenwriter for the original "Cat People" (1942).
 Giorgio Moroder composed the film's score, including the theme song, which features lyrics and vocals by David Bowie.
Apache Drums is a 1951 American Technicolor Western film directed by Hugo Fregonese and produced by Val Lewton.
 The drama features Stephen McNally, Coleen Gray, and Willard Parker.
 The film was based on an original story: "Stand at Spanish Boot", by Harry Brown.
 "Apache Drums" was the last film Val Lewton produced before his death.
Paul Joseph Schrader (born July 22, 1946) is an American screenwriter, film director, and film critic.
 Schrader wrote or co-wrote screenplays for four Martin Scorsese films: "Taxi Driver" (1976), "Raging Bull" (1980), "The Last Temptation of Christ" (1988), and "Bringing Out the Dead" (1999).
 Schrader has also directed 18 feature films, including his directing debut crime drama, "Blue Collar" (co-written with his brother, Leonard Schrader), the crime drama "Hardcore" (a loosely autobiographical film also written by Schrader), his 1982 remake of the horror classic "Cat People", the crime drama "American Gigolo" (1980), the biographical drama "" (1985), the cult film "Light Sleeper" (1992), the drama "Affliction" (1997), the biographical film "Auto Focus" (2002), and the erotic dramatic thriller "The Canyons" (2013).
I Walked with a Zombie is a 1943 horror film directed by Jacques Tourneur.
 It was the second horror film from producer Val Lewton for RKO Pictures.
Val Lewton (May 7, 1904 – March 14, 1951) was a Russian-American novelist, film producer and screenwriter best known for a string of low-budget horror films he produced for RKO Pictures in the 1940s.
 His son, also named Val Lewton, was a painter and exhibition designer.
Isle of the Dead is a 1945 horror film directed by Mark Robson and made for RKO Radio Pictures by producer Val Lewton.
 The film's script was inspired by the painting "Isle of the Dead" by Arnold Böcklin, which appears behind the title credits, though the film was originally titled "Camilla" during production.
 It was written by frequent Lewton collaborator Ardel Wray.
 It starred Boris Karloff.
 "Isle of the Dead" was the second of three films Lewton made with Karloff, and the fourth of five pictures Robson directed for Lewton.
Frances Marion Dee (November 26, 1909 – March 6, 2004) was an American actress.
 She starred opposite Maurice Chevalier in the early talkie musical, "Playboy of Paris" (1930).
 She starred in the film "An American Tragedy" (1931) in a role later recreated by Elizabeth Taylor in the 1951 retitled remake, "A Place in the Sun".
 She also had a prominent role in the classic 1943 Val Lewton psychological horror film "I Walked With a Zombie".
The Seventh Victim is a 1943 American horror film noir directed by Mark Robson and starring Tom Conway, Jean Brooks, Isabel Jewell, Kim Hunter, and Hugh Beaumont.
 Written by DeWitt Bodeen and Charles O'Neal, and produced by Val Lewton for RKO Radio Pictures, the film focuses on a young woman who stumbles on an underground cult of devil worshippers in Greenwich Village, New York City, while searching for her missing sister.
 It marks Robson's directorial debut and was Hunter's first onscreen role.