Question: What two occupations do  Alberto Cavalcanti and Oscar Apfel have in common?

full_context: Document 1: Walter Salles: Walter Moreira Salles, Jr. (born 12 April 1956) is a Brazilian filmmaker and film producer of international prominence.
Document 2: Richard Oswald: Richard Oswald (5 November 1880 – 11 September 1963) was an Austrian director, producer, and screenwriter.
Document 3: Robert Altman: Robert Bernard Altman ( ; February 20, 1925 – November 20, 2006) was an American film director, screenwriter, and film producer. A five-time nominee of the Academy Award for Best Director and an enduring figure from the New Hollywood era, Altman was considered a "maverick" in making films with a highly naturalistic but stylized and satirical aesthetic, unlike most Hollywood films. He is consistently ranked as one of the greatest and most influential filmmakers in American cinema.
Document 4: Alfred Santell: Alfred Allen Santell also known as Al Santell (born September 14, 1895 in San Francisco, California) was an American film director and film producer.
Document 5: Fedor Ozep: Fedor Ozep or Fyodor Otsep (Russian: Фёдор Александрович Оцеп , "Fyodor Aleksandrovich Otsep"; February 9, 1895 – June 20, 1949) was a Russian-American film director and screenwriter, born in Moscow. An important early writer on film and film theory, he served as dramaturge for the Mezhrabpomfilm-Rus company and wrote a number of films for directors such as V.I. Pudovkin and Yakov Protazanov before turning to directing in 1926.
Document 6: Alberto Cavalcanti: Alberto de Almeida Cavalcanti (February 6, 1897 – August 23, 1982) was a Brazilian-born film director and producer.
Document 7: Carlos Diegues: Carlos Diegues, also known as Cacá Diegues, (born May 19, 1940) is a Brazilian film director. He was born in Maceió, Alagoas, and is best known as a member of the Cinema Novo movement.
Document 8: Phil for Short: Phil for Short is a 1919 silent film comedy directed by Oscar Apfel and starring Evelyn Greeley. It was produced and distributed by World Film Company.
Document 9: Billy Wilder: Samuel "Billy" Wilder ( ; ] ; June 22, 1906March 27, 2002) was an Austrian-American filmmaker, screenwriter, producer, artist, and journalist whose career spanned more than five decades. He is regarded as one of the most brilliant and versatile filmmakers of Hollywood's golden age. With "The Apartment", Wilder became the first person to win Academy Awards as producer, director, and screenwriter for the same film.
Document 10: Fred C. Newmeyer: Fred C. Newmeyer (August 9, 1888 – April 24, 1967) was an American actor, film director and film producer.
Document 11: Leo McCarey: Thomas Leo McCarey (October 3, 1898 – July 5, 1969) was a three-time Academy Award winning American film director, screenwriter and producer. He was involved in nearly 200 movies, the most well known today being "Duck Soup", "Make Way for Tomorrow", "The Awful Truth", "Going My Way" and "An Affair To Remember".
Document 12: Arthur P. Jacobs: Arthur P. Jacobs (March 7, 1922 – June 27, 1973) was a press agent turned film producer responsible for such films in the 1960s and 1970s as the "Planet of the Apes" series, "Doctor Dolittle", "Goodbye, Mr. Chips", "Play It Again, Sam" and "Tom Sawyer" through his company APJAC Productions.
Document 13: Liliana Cavani: Liliana Cavani (born 12 January 1933) is an Italian film director and screenwriter. She belongs to a generation of Italian filmmakers from Emilia-Romagna that came into prominence in the 1970s, including Bernardo Bertolucci, Pier Paolo Pasolini and Marco Bellocchio. Cavani became internationally known after the success of her 1974 feature film "Il portiere di notte" ("The Night Porter"). Her films are intellectual and have historical concerns. In addition to feature films and documentaries, she has also directed opera.
Document 14: Albert Ray: Albert Ray (August 28, 1897 – February 5, 1944) was an American film director, actor and screenwriter. He directed 76 films between 1920 and 1939. He also appeared in 18 films between 1915 and 1922. He was born in New Rochelle, New York and died in Los Angeles, California.
Document 15: Oscar Apfel: Oscar C. Apfel (January 17, 1878 – March 21, 1938) was an American film actor, director, screenwriter and producer. He appeared in 167 films between 1913 and 1939, and also directed 94 films between 1911 and 1927.
ground_truth: film director and producer