Question: What award did Gene Hackman win for his performance in a movie that was adapted and fictionalized from a 1969 book by Robin Moore?

full_context: Document 1: French Connection II: French Connection II is a 1975 crime drama film starring Gene Hackman and directed by John Frankenheimer. It is a fictional sequel to the initially true story of the 1971 Academy Award winning picture "The French Connection". The film expands on the central character of Det. Jimmy "Popeye" Doyle who travels to Marseille, France where he is attempting to track down French drug-dealer Alain Charnier, who escaped at the end of the first film. Hackman won an Academy Award for Best Actor for the original "The French Connection" and he and Fernando Rey are the only returning cast members.
Document 2: The French Connection (book): The French Connection: A True Account of Cops, Narcotics, and International Conspiracy is a non-fiction book by Robin Moore first published in 1969 about the notorious "French Connection" drug trafficking scheme. It is followed by the book "The Setup". The book was adapted to film in 1971 as "The French Connection", written by Ernest Tidyman and Directed by William Friedkin.
Document 3: Mike Connors: Mike Connors (born Krekor Ohanian; August 15, 1925 – January 26, 2017) was an Armenian-American actor best known for playing private detective Joe Mannix in the CBS television series "Mannix" from 1967 to 1975, a role which earned him a Golden Globe Award in 1970, the first of six straight nominations, as well as four consecutive Emmy nominations from 1970 through 1973. He also starred in the short-lived series "Tightrope!" (1959-1960) and "Today's FBI" (1981-1982). Connors' acting career spanned six decades; in addition to his work on television, he appeared in numerous films, most notably the 1965 World War II black comedy "Situation Hopeless... But Not Serious", in which he and Robert Redford played American soldiers taken prisoner by a German villager played by Alec Guinness.
Document 4: The French Connection (ice hockey): The French Connection was the nickname of a forward line that played for the Buffalo Sabres of the National Hockey League from 1972 until 1979. The line consisted of Hall of Famer Gilbert Perreault at centre and All-Stars Rick Martin and Rene Robert at left wing and right wing, respectively. All three players were French-Canadians from Quebec: Perreault from Victoriaville; Robert from Trois-Rivières; and Martin from Verdun, Quebec. The name referred both to the origins of the players and to the 1971 movie "The French Connection", based upon the book of the same name.
Document 5: Flic Story: Flic Story French: "Il était une fois un flic" is a French crime thriller released on October 1, 1975, based on the autobiography of the same name written by French police detective Roger Borniche. Both film and book portray Borniche's nine-year pursuit of French gangster and murderer Emile Buisson, who was executed on February 28, 1956. Directed by Jacques Deray, the film stars Alain Delon and Jean-Louis Trintignant as Borniche and Buisson respectively, supported by Claudine Auger and André Pousse.
Document 6: William Friedkin: William Friedkin (born August 29, 1935) is an American film director, producer and screenwriter best known for directing "The French Connection" in 1971 and "The Exorcist" in 1973; for the former, he won the Academy Award for Best Director. Some of his other films include "Sorcerer", "Cruising", "To Live and Die in L.A.", "Jade", "Rules of Engagement", "The Hunted", "Bug", and "Killer Joe".
Document 7: James &quot;Sonny&quot; Crockett: Detective James "Sonny" Crockett is a fictional character in the NBC television series "Miami Vice" and the 2006 film adaptation. The character is portrayed by Don Johnson in the television series, and Colin Farrell in the film. He was introduced in the "Miami Vice" pilot in 1984 and appeared in every subsequent episode except Season 5's "Borrasca" and in the film. The character has also appeared in video games and various popular culture references.
Document 8: The Thin Blue Line (1965 film): The Thin Blue Line was the second of three documentaries William Friedkin made for producer David Wolper. It focused on the police force, and the experience making it influenced Friedkin on "The French Connection".
Document 9: Joe Don Baker: Joe Don Baker (born February 12, 1936) is an American character actor and a life member of the Actors Studio, He established himself as an action star with supporting roles as a mysterious cowboy drifter in "Guns of the Magnificent Seven" (1969), and as a deputy sheriff in the western "Wild Rovers" (1971), before receiving worldwide fame for his iconic roles as a mafia hitman in "Charley Varrick" (1973), real-life Tennessee Sheriff Buford Pusser in the classic action film "Walking Tall" (1973), brute force detective Mitchell in "Mitchell" (1975), deputy sheriff Thomas Jefferson Geronimo III in "Final Justice" (1985), and as chief Jerry Karlin in the action-comedy "Fletch" (1985).
Document 10: The Connection (2014 action film): The Connection (French: La French ) is a 2014 French-Belgian action crime thriller film directed by Cédric Jimenez and produced by Alain Goldman. The film was inspired by the events of the French Connection in the 1970s, starring Jean Dujardin as police magistrate Pierre Michel and Gilles Lellouche as Gaëtan "Tany" Zampa, a drug gang ringleader. The film premiered at the Toronto International Film Festival on 10 September 2014.
Document 11: Fernando Rey: Fernando Casado Arambillet (20 September 1917 – 9 March 1994), best known as Fernando Rey, was a Spanish film, theatre, and television actor, who worked in both Europe and the United States. A suave, international actor best known for his roles in the films of surrealist director Luis Buñuel ("Tristana", 1970; "Discreet Charm of the Bourgeoisie", 1972; "That Obscure Object of Desire", 1977) and as a drug lord in "The French Connection" (1971), he appeared in more than 150 films over half a century.
Document 12: The French Connection (film): The French Connection is a 1971 American crime thriller film directed by William Friedkin and produced by Philip D'Antoni. It stars Gene Hackman, Fernando Rey, and Roy Scheider. The film was adapted and fictionalized by Ernest Tidyman from the 1969 non-fiction book by Robin Moore. It tells the story of New York Police Department detectives Jimmy "Popeye" Doyle and Buddy "Cloudy" Russo, whose real-life counterparts were Narcotics Detectives Eddie Egan and Sonny Grosso. Don Ellis scored the film.
Document 13: Jimmy &quot;Popeye&quot; Doyle: Detective Jimmy "Popeye" Doyle is a fictional character portrayed by actor Gene Hackman in the films "The French Connection" (1971) and its sequel, "French Connection II" (1975), and by Ed O'Neill in the 1986 television film "Popeye Doyle". Hackman won the Academy Award for Best Actor for his performance in "The French Connection". The character is based on a real-life New York City police detective, Eddie Egan, who also appeared in the film as Walt Simonson, Popeye's supervisor. Popeye, as played by Hackman in "The French Connection", is ranked number 44 as a hero on the AFI's 100 Years...100 Heroes and Villains list.
Document 14: Heat (1995 film): Heat is a 1995 American crime film written, produced and directed by Michael Mann, and starring Robert De Niro, Al Pacino, and Val Kilmer. De Niro plays Neil McCauley, a professional thief, while Pacino plays Lt. Vincent Hanna, a LAPD robbery-homicide detective tracking down McCauley's crew. The story is based on the former Chicago police officer Chuck Adamson's pursuit during the 1960s of a criminal named McCauley, after whom De Niro's character is named. Heat is a remake by Mann of a TV series he had worked on, the pilot of which was released as a TV movie, "L.A. Takedown" in 1989.
Document 15: Jack Kehoe: Jack Kehoe (born November 21, 1938) is an American film actor appearing in a wide variety of films, including the crime dramas "Serpico" (1973), "The Pope of Greenwich Village" (1984) and Brian De Palma's "The Untouchables" (1987), as well as the cult favorites "Car Wash" (1976), "Midnight Run" (1988), the popular western "Young Guns II" (1990) and "On the Nickel" (1980).
ground_truth: Academy Award for Best Actor