Title: Sons (1996 film)
Content:  Sons is a 1996 Chinese film directed by Zhang Yuan. Detailing the collapse of a family due to alcoholism, Sons straddles the line between fiction and documentary, as the film's "actors" all play themselves in reenactments of their own lives. Zhang came upon the idea of making a film about a family's collapse into alcoholism after hearing about the story of his downstairs neighbors, former professional dancers, and their two grown sons. The film was privately financed and was made outside of the traditional studio system. As a result, Sons was never screened in China.
Title: Sons (2006 film)
Content:  Sons (Sønner) is a 2006 Norwegian film focusing on the conflict between a pederast and the boys with whom he has had intimate relationships (his "sons"). It is Erik Richter Strand's first feature film as a director, and the feature-film debut of producer Eric Vogel and cinematographer Johan-Fredrik Bødker.
Title: Sons of Guns
Content: Stephen Land (executive producer) ; Patrick Leigh-Bell (co-executive producer) ; Stephanie Buxbaum (co-executive producer) ; Dolores Gavin (executive producer for Discovery Channel) ; Zac McFarlane (director/cinematography) ; David Vanacore (music) ; Eric Johannsen (editor) ; Todd Beabout (editor) ; Edward Klau (editor) ; Mike Le (editor) 
Title: Sons and Lovers (film)
Content:  Sons and Lovers is a 1960 British drama directed by Jack Cardiff adapted from the semi-autobiographic novel of the same name by D. H. Lawrence. It stars Trevor Howard, Dean Stockwell, Wendy Hiller, Mary Ure, William Lucas and Donald Pleasence. Location shooting took place near Nottingham in the East Midlands of England, very close to where Lawrence himself grew up. The film was nominated for seven Academy Awards, winning one for Best Cinematography. The film was also entered into the 1960 Cannes Film Festival.
Title: Sons of the Saddle
Content:  In addition to Brown as director and Cohen and Mason as screenwriters, Fred Allen was the editor, Ted D. McCord was the cinematographer, and Maynard was the producer.
Title: Sons (2006 film)
Content:  script, direction, acting and credibility all click together as well. In other words, Sønner is a film you do not want to miss". Variety writes: "A hard-hitting and thoughtful drama about a young man's quest to expose a pedophile, Sons is an impressive first film by young Norwegian writer-director Erik Richter Strand [...]. Intense semi-thriller maintains interest without slipping into cliche, and has an ending both satisfying and unexpected". Sons had its international premiere at the San Sebastian Film Festival in Spain; since then, it has been featured in more than 20 film festivals worldwide. Among its numerous trophies the film has won the Fassbinder Award in Mannheim, Germany, and The Grand Jury Award at the Seattle International Film Festival in the USA.
Title: Sons and Lovers (film)
Content: Trevor Howard as Walter Morel ; Dean Stockwell as Paul Morel ; Wendy Hiller as Gertrude Morel ; Mary Ure as Clara Dawes ; Heather Sears as Miriam Leivers ; William Lucas as William Morel ; Conrad Phillips as Baxter Dawes ; Ernest Thesiger as Henry Hadlock ; Donald Pleasence as Mr. Pappleworth ; Rosalie Crutchley as Mrs. Leivers ; Sean Barrett as Arthur Morel ; Elizabeth Begley as Mrs. Radford ; Edna Morris as Mrs. Anthony ; Ruth Kettlewell as Mrs. Bonner ; Anne Sheppard as Rose ; Dorothy Gordon as Fanny ; Sheila Bernette as Polly 
Title: Sons (2006 film)
Content: Nils Jørgen Kaalstad as Lars ; Mikkel Bratt Silset as Tim ; Edward Schultheiss as Jørgen ; Henrik Mestad as Hans ; Ingrid Bolsø Berdal as Norunn ; Anna Bache-Wiig as Heidi ; Ronnie Baraldsnes as Nyhetsanker ; Christin Borge as Dame i svømmehallen ; Terje Brevik as Prostitute's client ; Fredrik Stenberg Ditlev-Simonsen as Victim ; Marika Enstad as Anja ; Henrik Fjelldal as Roar ; Ane Hoel as Studio expert ; Lars Erik Holter as Man in Asker ; Jeppe Beck Laursen as Prostitute's client (billed as Jeppe Laursen) ; Fredrik Norrman as Torgeir ; Joachim Rafaelsen as Joakim 
Title: Sons of New Mexico
Content:  Sons of New Mexico is a 1949 American Western film directed by John English and written by Paul Gangelin. The film stars Gene Autry, Gail Davis, Robert Armstrong, Dick Jones, Frankie Darro and Irving Bacon. The film was released on December 20, 1949, by Columbia Pictures.
Title: Our Sons
Content:  Our Sons is a 1991 American made-for-television drama film starring Julie Andrews and Ann-Margret as two mothers of gay sons, one of whom is dying of AIDS. It was inspired by Micki Dickoff's 1987 documentary, Too Little, Too Late, about three families who had supported children with AIDS which had won an Emmy Award. As it was a TV movie, ”It’s much safer to take the route of dealing with the two mothers” as the protagonists, said director John Erman. It was broadcast the same day as GMHC's annual AIDS Walk in New York.

Question: Who was the director of Sons?
Answer: Zhang Yuan.
Yuan Zhang.