Question: Were both Richard C. Sarafian and Deran Sarafian both European film makers?

Context articles: To Die For (1989 film)
Richard C. Sarafian
Deran Sarafian
Back in the USSR (film)
Terminal Velocity (film)
Interzone (film)
Death Warrant (film)
Creatures from the Abyss
Tedi Sarafian
Gunmen (1994 film)

To Die For (also known as Dracula: The Love Story) is a 1989 horror-romance film directed by Deran Sarafian and stars Brendan Hughes as vampire Vlad Tepes, Duane Jones (in his final film role), Philip Granger, Julie Maddalena and Amanda Wyss.
Richard Caspar Sarafian (April 28, 1930 – September 18, 2013) was an American television and film director and actor.
 He compiled a versatile career that spanned over five decades as a director, actor, and writer.
 He is best known as the director of the 1971 film "Vanishing Point".
Deran Sarafian (born January 17, 1958) is an American film and television director and former actor.
 He directed "Death Warrant, Gunmen," and "Terminal Velocity."
Back in the USSR is a 1992 American thriller film directed by Deran Sarafian and starring Frank Whaley, Natalya Negoda and Roman Polanski.
Terminal Velocity is a 1994 American action film starring Charlie Sheen, Nastassja Kinski, James Gandolfini, and Christopher McDonald.
 Directed by Deran Sarafian and written by David Twohy, it follows a daredevil skydiver (Sheen) who is caught up in a criminal plot by Russian mobsters (Gandolfini and McDonald), forcing him to team up with a freelance secret agent (Kinski) in order to survive.
 It was one of two skydiving-themed action films released in the fourth quarter of 1994 (the other being Paramount Pictures' "Drop Zone"), and received mostly negative reviews from critics.
Interzone is a 1987 Italian-American sci-fi/action film directed by Deran Sarafian, with original music composed by Stefano Mainetti, starring Bruce Abbott, Beatrice Ring, and Teagan Clive.
 It was produced by Filmirage in Bracciano, 30 km northwest of Rome, and is set in a post-apocalyptic future.
Death Warrant is a 1990 American action crime mystery-thriller film directed by Deran Sarafian and produced by Mark DiSalle.
 The film was written by David S. Goyer while a student at USC, and was Goyer's first screenplay to be sold and produced commercially.
 In the film, the police detective Louis Burke is going into a prison facility at California as an undercover cop in order to find out who stands behind a mysterious series of murders, and finds himself locked up with his arch-nemesis; Christian Naylor, a psychotic serial killer who calls himself "The Sandman" whom sets out to exact revenge upon him after getting into prison.
Creatures from the Abyss (original title Plankton) is a 1994 Italian b-movie directed by Al Passeri and written by Richard Bauman.
 The film starred Clay Rogers, Michael Bon, Sharon Twomey, Laura di Palma, Ann Wolf and infamous low budget movie director and actor Deran Sarafian.
Tedi Sarafian is an American screenwriter.
 He was a co-writer of "" (2003).
 He is the son of Richard C. Sarafian, and the brother of Richard Sarafian Jr. and Deran Sarafian and the nephew of Robert Altman.
 He also is the co-owner of Barefoot Sound, manufacturer of high-end recording monitors.
Gunmen is a 1994 action-comedy film directed by Deran Sarafian.
 It stars Mario Van Peebles, Christopher Lambert, Denis Leary, Kadeem Hardison, and Patrick Stewart.
 Robert Harper and Brenda Bakke are co-stars of the film.
 It was released to home video by Lionsgate Home Entertainment and on the US iTunes Store.