Question: what does Helma Sanders-Brahms and Andrew Lau have in common?

full_context: Document 1: Andy Lau: Andy Lau Tak-wah, BBS, MH, JP (, born 27 September 1961) is a Hong Kong actor, singer, lyricist and film producer. He has been one of Hong Kong's most commercially successful film actors since the mid-1980s, performing in more than 160 films while maintaining a successful singing career at the same time. In the 1990s, Lau was branded by the media as one of the Four Heavenly Kings of Cantopop.
Document 2: Rainer Werner Fassbinder: Rainer Werner Fassbinder (] ; 31 May 1945 – 10 June 1982) was a West German filmmaker, actor, playwright and theatre director, part of the New German Cinema movement.
Document 3: Helma Sanders-Brahms: Helma Sanders-Brahms (20 November 1940 – 27 May 2014) was a German film director, screenwriter and producer.
Document 4: Leni Riefenstahl: Helene Bertha Amalie "Leni" Riefenstahl (] ; 22 August 1902 – 8 September 2003) was a German film director, producer, screenwriter, editor, photographer, actress and dancer.
Document 5: Sherry Hormann: Sherry Hormann (born 20 April 1960) is an American film director. She was married to film director Dominik Graf. In October 2011, she married cinematographer Michael Ballhaus; he died in April 2017.
Document 6: Wong Kar-wai: Wong Kar-wai, BBS (born 17 July 1958) is a Hong Kong Second Wave filmmaker, internationally renowned as an auteur for his visually unique, highly stylized work, including "As Tears Go By" (1988), "Days of Being Wild" (1990), "Ashes of Time" (1994), "Chungking Express" (1994), "Fallen Angels" (1995), "Happy Together" (1997), "2046" (2004) and "The Grandmaster" (2013). His film "In the Mood for Love" (2000), starring Maggie Cheung and Tony Leung, notably garnered widespread critical acclaim.
Document 7: Wong Kar-wai filmography: Wong Kar-wai (born 17 July 1958) is a Hong Kong film director, screenwriter and producer. He began his career as a screenwriter in 1982, then made his directoral debut in 1988. As of 2015, he has directed 10 feature films. He has also worked as producer on several films he did not direct. Wong has also directed short films, commercials, and two music videos.
Document 8: Martin Scorsese: Martin Charles Scorsese ( ; ] ; born November 17, 1942) is an American director, producer, screenwriter, and film historian, whose career spans more than 50 years. Scorsese's body of work addresses such themes as Sicilian-American identity, Roman Catholic concepts of guilt and redemption, faith, machismo, modern crime, and gang conflict. Many of his films are also known for their depiction of violence and liberal use of profanity.
Document 9: Andrew Lau: Andrew Lau Wai-Keung (born 4 April 1960) is a Hong Kong film director, producer, and cinematographer. Lau began his career in the 1980s and 1990s, serving as a cinematographer to filmmakers such as Ringo Lam, Wong Jing and Wong Kar-wai. In the 1990s, Lau decided to have more creative freedom as a cinematographer by becoming a film director and producer. Apart from making films in his native Hong Kong, Lau has also made films in China, Korea and the United States. A highly prolific filmmaker, Lau has made films in a variety of genres, and is most notable in the West for his action and crime films which include the "Young and Dangerous" film series, the "Infernal Affairs" trilogy (the latter co-directed together with Alan Mak), and "Revenge of the Green Dragons" (executive produced by Martin Scorsese).
Document 10: Fatma Begum: Fatma Begum was an Indian actress, director, and screenwriter. She is often considered the first female film director of Indian cinema. Within four years, she went on to write, produce and direct many films. She launched her own production house, Fatma Films, and directed Bulbul-e-Paristan in 1926. She lived from 1892-1983 and was mother to three children.
Document 11: Geliebte Clara: Geliebte Clara ("Beloved Clara") is a Franco-German-Hungarian 2008 film, directed by Helma Sanders-Brahms, her last film before her 2014 death, about the pianist Clara Schumann and her marriage with the composer Robert Schumann.
Document 12: Johnnie To: Johnnie To (born 22 April 1955), also known as To Kei-Fung (杜琪峯), is a Hong Kong film director and producer. Popular in his native Hong Kong, To has also found acclaim overseas. Intensely prolific, To has made films in a variety of genres, though in the West he is best known for his action and crime movies, which have earned him critical respect and a cult following (which include Quentin Tarantino, who once said that he really loves to watch To's gangster films).
Document 13: Germany, Pale Mother: Germany, Pale Mother (German: Deutschland bleiche Mutter ) is a 1980 West German drama film written and directed by Helma Sanders-Brahms. It was shown at the 30th Berlin International Film Festival in 1980, where it was nominated for a Golden Bear award. It was not released in the United States until 1984.
Document 14: Helmut Käutner: Helmut Käutner (born 25 March 1908 in Düsseldorf, Germany; died 20 April 1980 in Castellina in Chianti, Italy) was a German film director active mainly in the 1940s and 1950s. He began his career at the end of the Weimar Republic and had released his first major films in Nazi Germany.
Document 15: Revenge of the Green Dragons: Revenge of the Green Dragons is a 2014 crime drama film directed by Andrew Lau and Andrew Loo, written by Michael Di Jiacomo and Andrew Loo, with Martin Scorsese as an executive producer. The film stars Ray Liotta, Justin Chon, Shuya Chang, Harry Shum, Jr., Kevin Wu, and Billy Magnussen. The film is based on Frederic Dannen’s "New Yorker" article that chronicled the true story of Chinese-American gang life in 1980s and 1990s New York City.
ground_truth: director