Question: what is similar about John Farrow and Richard Attenborough? 

Context articles: Ride, Vaquero!
John Farrow
Gerald Sim
Prudence Farrow
John Paul Jones (film)
Richard Attenborough
Guns at Batasi
Tom Attenborough
Ronan Farrow
Comet Over Broadway

Ride, Vaquero!
 is a 1953 western film made by Metro-Goldwyn-Mayer (MGM).
 It was directed by John Farrow and produced by Stephen Ames from a screenplay by Frank Fenton and John Farrow.
 The music score was by Bronislau Kaper and the cinematography by Robert Surtees.
John Villiers Farrow, KGCHS (10 February 190427 January 1963) was an Australian-American film director, producer and screenwriter.
 In 1957, he won the Academy Award for Best Writing/Best Screenplay for "Around the World in Eighty Days" and in 1942 he was nominated as Best Director for "Wake Island".
 He had seven children by his wife, actress Maureen O'Sullivan, including actress Mia Farrow.
Gerald Grant Sim (4 June 1925 – 11 December 2014) was an English television and film actor who is perhaps best known for playing the Rector in "To the Manor Born".
 He was the younger brother of the actress Sheila Sim and brother-in-law of the actor/director Richard Attenborough.
 In August 2013, on Richard Attenborough's 90th birthday, it was reported that he was living in a care home for entertainers with his sister in the next room and his brother-in-law on the other side.
 He died on 11 December 2014.
Prudence Anne Villiers Farrow Bruns (born January 20, 1948) is an American author, meditation teacher, and film producer.
 She is the daughter of film director John Farrow and actress Maureen O'Sullivan, and the younger sister of actress Mia Farrow.
 She is the subject of the Beatles song "Dear Prudence".
John Paul Jones is a Technicolor 1959 biographical epic film in Technirama about John Paul Jones.
 The film, shot in Spain, was made by Samuel Bronston Productions and released by Warner Bros. It was directed by John Farrow and produced by Samuel Bronston from a screenplay by John Farrow, Ben Hecht, and Jesse Lasky Jr.
 from the story "Nor'wester" by Clements Ripley.
 The music score was by Max Steiner, the cinematography by Michel Kelber.
 It was the final film directed by Farrow.
Richard Samuel Attenborough, Baron Attenborough, {'1': ", '2': ", '3': ", '4': "} ( ; 29 August 1923 – 24 August 2014) was an English actor, filmmaker, entrepreneur, and politician.
 He was the President of the Royal Academy of Dramatic Art (RADA) and the British Academy of Film and Television Arts (BAFTA).
 Attenborough joined the Royal Air Force during World War II and served in the film unit.
 He went on several bombing raids over Europe and filmed action from the rear gunner's position.
Guns at Batasi is a 1964 British drama film starring Richard Attenborough, Jack Hawkins, Flora Robson, John Leyton and Mia Farrow.
 The film was based on the 1962 novel "The Siege of Battersea" by Robert Holles and was directed by John Guillermin.
 Although the action is set in an overseas colonial military outpost during the last days of the British Empire in East Africa, the production was made at Pinewood Studios in the United Kingdom.
Tom Attenborough (born 13 October 1986) is an English theatre director.
 He is the son of theatre director Michael Attenborough and the grandson of the late film actor and director Richard Attenborough.
Satchel Ronan O'Sullivan Farrow (born December 19, 1987) is an American activist, journalist, lawyer, and former U.S. government advisor.
 He is the son of actress Mia Farrow and filmmaker Woody Allen.
 He is also the grandson of Australian director John Farrow and Irish actress Maureen O'Sullivan.
Comet over Broadway (1938) is an American film starring Kay Francis and released by Warner Brothers.
 John Farrow stepped in as director when Busby Berkeley became ill, but Farrow was uncredited on the film.