Question: Did both Roger Christian and Joe D'Amato make films?

full_context: Document 1: Joe D'Amato: Joe D'Amato (birth name: Aristide Massaccesi; 15 December 1936 in Rome – 23 January 1999 in Rome) was an Italian filmmaker who is most well known for his horror and adult films.
Document 2: Mario Bava: Mario Bava (31 July 1914 – 27 April 1980) was an Italian director, screenwriter, special effects artist, and cinematographer from the "golden age" of Italian horror films. His work kick-started the giallo film genre and the modern "slasher film". His son Lamberto Bava later went on to become a noted horror film director in his own right.
Document 3: Bruno Mattei: Bruno Mattei (30 July 1931 – 21 May 2007) was an Italian film director, screenwriter and editor who directed exploitation films in many genres, including women in prison, nunsploitation, zombie, cannibal and Naziploitation films. Mattei's films were often following the popular genre trends of the era. Mattei continued work as a director until his death in 2007.
Document 4: Roger Christian (filmmaker): Roger Christian (born 25 February 1944) is an English set decorator, production designer and feature film director. He won an Academy Award for his work on the original "Star Wars" and was Oscar-nominated for his work on "Alien". Christian directed the second unit on both "Return of the Jedi" and "" as well as feature films including "The Sender" and "Nostradamus". He also directed the 2000 film "Battlefield Earth" which is regarded as one of the worst films ever made.
Document 5: Starship (film): Starship, also known as Lorca and the Outlaws, and 2084 is a 1984 science fiction film directed by Roger Christian from a screenplay by Christian and Matthew Jacobs. The music for the film, which stars John Tarrant, Deep Roy, Donogh Rees and Cassandra Webb, was written by Tony Banks of Genesis.
Document 6: Alberto De Martino: Alberto De Martino (12 June 1929 – 2 June 2015) was an Italian film director and screenwriter. Born in Rome, De Martino started as a child actor and later returned to the cinema where worked as a screenwriter, director and dubbing supervisor. De Martino's films as a director specialised in wellcrafted knock-offs of Hollywood hit films. These films were specifically created films in Western, horror and mythology genres which were developed for the international market. "The Telegraph" stated that his best known of these film was probably "The Antichrist". "The Antichrist" capitalized on the box-office appeal of "The Exorcist" (1973) and in its first week in the United States earned a greater box office than "Jaws". Horror film fans also remember him for "The Blancheville Monster", "Blood Link", "Formula for a Murder", "Medusa vs the Son of Hercules" and "Holocaust 2000".
Document 7: Nick Allder: Nick Allder is an English special effects supervisor and coordinator. He started his career as an assistant camera operator and moved, after eight years, into special effects. He has won multiple awards, including an Academy Award for Best Visual Effects for the science-fiction horror film "Alien" (1979), and a BAFTA Award for Best Special Visual Effects for the science-fiction film "The Fifth Element" (1997). Allder has worked on the set of high-grossing films such as the epic space opera "The Empire Strikes Back" (1980) and the historical drama film "Braveheart" (1995).
Document 8: Pupi Avati: Giuseppe Avati, better known as Pupi Avati (born 3 November 1938), is an Italian film director, producer, and screenwriter. He is known to horror film fans for his two masterpieces of the macabre, "The House with Laughing Windows" (1976) and "Zeder" (1983).
Document 9: Chris Corbould: Christopher Charles Corbould, {'1': ", '2': ", '3': ", '4': "} (born 1958) is a British special effects coordinator best known for his work on major blockbuster films and the action scenes on some 11 "James Bond" films since the early 1980s. He has also worked extensively on the "Superman" and "Batman" film series on digital effects and stunts. Corbould has been awarded two Honorary Doctorates from Southampton Solent University in December 2009 and University of Hertfordshire in 2011. In 2011, he won the Academy Award for Best Visual Effects at the 83rd Academy Awards for his work on "Inception". He is the brother of special effects supervisors Neil Corbould and Paul Corbould.
Document 10: Ridley Scott: Sir Ridley Scott (born 30 November 1937) is an English film director and producer. Following his commercial breakthrough with the science-fiction horror film "Alien" (1979), his best known works include the neo-noir dystopian science fiction film "Blade Runner" (1982), historical drama and Best Picture Oscar winner "Gladiator" (2000), and science fiction film "The Martian" (2015).
Document 11: Dario Argento: Dario Argento (] ; born 7 September 1940) is an Italian film director, producer, film critic and screenwriter. He is best known for his work in the horror film genre during the 1970s and 1980s, particularly in the subgenre known as "giallo", and for his influence on modern horror movies.
Document 12: Black Angel (1980 film): Black Angel is a 1980 British short film that was shown before the theatrical release of "The Empire Strikes Back" in certain locales. It was the directorial debut of "Star Wars" art director Roger Christian. The film negative was thought to be lost until it was rediscovered in December 2011. In June 2015, it was announced that Christian was working on a feature film adaptation of "Black Angel", which would be in part funded on crowd-funding site, Indiegogo.
Document 13: Battlefield Earth (film): Battlefield Earth (also referred to as Battlefield Earth: A Saga of the Year 3000) is a 2000 American science fiction action film based upon the first half of L. Ron Hubbard's 1982 novel of the same name. Directed by Roger Christian and starring John Travolta, Barry Pepper and Forest Whitaker, the film depicts an Earth that has been under the rule of the alien Psychlos for 1,000 years and tells the story of the rebellion that develops when the Psychlos attempt to use the surviving humans as gold miners.
Document 14: Alien (film): Alien is a 1979 science-fiction horror film directed by Ridley Scott, and starring Sigourney Weaver, Tom Skerritt, Veronica Cartwright, Harry Dean Stanton, John Hurt, Ian Holm and Yaphet Kotto. The film's title refers to a highly aggressive extraterrestrial creature that stalks and attacks the crew of a spaceship. Dan O'Bannon, drawing upon previous works of science fiction and horror, wrote the screenplay from a story he co-authored with Ronald Shusett. The film was produced by Gordon Carroll, David Giler and Walter Hill through their company Brandywine Productions, and was distributed by 20th Century Fox. Giler and Hill revised and made additions to the script. Shusett was executive producer. The eponymous Alien and its accompanying elements were designed by the Swiss artist H. R. Giger, while concept artists Ron Cobb and Chris Foss designed the more human aspects of the film.
Document 15: Porno Holocaust: Porno Holocaust is a 1981 Italian sexploitation horror film directed by Joe D'Amato, and written by George Eastman. The film was co-directed by Bruno Mattei (uncredited).
ground_truth: yes