Question: What profession is practiced by both Craig Serling and Zhang Yimou?

full_context: Document 1: Kelly Fremon Craig: Kelly Fremon Craig is an American screenwriter, producer, and film director. She is known for directing, writing, and co-producing the 2016 coming-of-age comedy-drama "The Edge of Seventeen."
Document 2: Zhang Junzhao: Zhang Junzhao (; born 1952) is a Chinese film director and screenwriter who was mainly active in the 1980s. A graduate of the Beijing Film Academy and a contemporary of such acclaimed directors as Zhang Yimou, Chen Kaige, and Tian Zhuangzhuang, Zhang Junzhao was a prominent early member of China's Fifth Generation filmmakers. His 1984 film "One and Eight" ("Yi ge he ba ge") is well known as a film that marked the advent of the Fifth Generation, while "The Shining Arc" (弧光; "Hu guang", 1988) was nominated for the Golden St. George award at the 1989 Moscow International Film Festival.
Document 3: Ju Dou: Ju Dou () is a 1990 Chinese film directed by Zhang Yimou and Yang Fengliang (though it is almost universally considered to be a product of Zhang's vision as director) and starring Gong Li as the title character. It is notable for being shot in vivid three-strip Technicolor long after the process had been abandoned in the United States. It was also the first Chinese film to be nominated for an Academy Award for Best Foreign Language Film, in 1990.
Document 4: Hou Yong (cinematographer): Hou Yong (; born 1960) is a Chinese filmmaker and cinematographer. He is perhaps best known for his collaboration with director Zhang Yimou, though he has worked with many of China's major directors. Like some of Zhang's other cinematographers (notably Lü Yue, whom Hou replaced), Hou has also moved into the directing world. In 2004, he directed "Jasmine Women" starring Zhang Ziyi.
Document 5: Zhang Jianya: Zhang Jianya (, ] ) (born 1951) is a Chinese film director. As a graduate of the 1982 class of the Beijing Film Academy, Zhang is a founding member of the so-called Fifth Generation, a group that also includes in its numbers directors such as Zhang Yimou, Chen Kaige, and Tian Zhuangzhuang.
Document 6: Craig Alpert: Craig Alpert is an American film editor. Alpert began his career as an assistant editor at Pixar, where he worked on films such as "Toy Story 2". He then worked as an assistant editor on "The Matrix Reloaded", "Hulk", "Meet the Fockers", and as an additional editor on "The 40 Year Old Virgin", and "". Alpert has since gone on to edit several high-profile comedy films.
Document 7: Craig Schlattman: Craig Schlattman is an Award winning American director, writer, producer, and cinematographer, best known for his Independent features, "At Ground Zero" starring Thomas Jane (credited as Tom Elliott), and "The Seller" starring Brian Brophy.
Document 8: Jiang Wen: Jiang Wen (born 5 January 1963) is a Chinese film actor, screenwriter, and director. As a director, he is sometimes grouped with the "Sixth Generation" that emerged in the 1990s. Jiang is also well known internationally as an actor, having starred with Gong Li in Zhang Yimou's debut film "Red Sorghum" (1986), and more recently as Baze Malbus in the Star Wars anthology film "Rogue One" (2016). He is the older brother of fellow actor Jiang Wu.
Document 9: Marc Smerling: Marc Smerling is an American film producer, screenwriter and cinematographer. He was nominated for an Oscar for "Capturing the Friedmans" in 2003, and co-wrote and produced "The Jinx", a six-part HBO documentary on suspected murderer Robert Durst.
Document 10: Jia Zhangke: Jia Zhangke (born 24 May 1970) is a Chinese film director and screenwriter. He is generally regarded as a leading figure of the "Sixth Generation" movement of Chinese cinema, a group that also includes such figures as Wang Xiaoshuai, Lou Ye, Wang Quan'an and Zhang Yuan.
Document 11: Craig Serling: Craig Serling is an American film director, film producer, screenwriter, and television editor known for multiple Primetime Emmy nominations for 'Outstanding Picture Editing for Non-Fiction Programming' and for his 2006 directorial debut feature film "Jam".
Document 12: Jam (film): Jam (or Jam: When Lives Collide) is a 2006 drama film directed by Craig E. Serling. Written by Serling and Nicole Lonner, the film was executive produced by Dianne Burnett for Burnett Entertainment in association with Thanksgiving Films. As Serling's first feature length project, "Jam" is based upon a short film by the same name that Serling shot in 2004. Starring Elizabeth Bogush, Dan Byrd, Julie Claire, and David DeLuise, "Jam" premiered at the Vail Film Festival on April 1, 2006, aired on television on the Starz! TV channel, and was released on DVD on July 3, 2007, by the Starz! distribution branch of Anchor Bay Entertainment.
Document 13: Zhang Yimou: Zhang Yimou ( ; born 2 April 1950) is a Chinese film director, producer, writer and actor, and former cinematographer. He is counted amongst the Fifth Generation of Chinese filmmakers, having made his directorial debut in 1987 with "Red Sorghum".
Document 14: Craig Wright (playwright): Craig Wright (born 1965 in Puerto Rico) is an American playwright, television producer and writer. He is known for writing for shows including "Six Feet Under" and "Lost" and creating the television series "Dirty Sexy Money". He also was the screenwriter for the movie "Mr. Peabody & Sherman", released March 7, 2014.
Document 15: John Craig (musician): John Craig is an American indie pop artist based in Portland, Oregon. John's solo project "John Craig & The Weekend" was formed in Portland in 2009. Craig gained notoriety in the Portland music scene for his 2009 single "Ticking" which was featured in the motion picture Tucker & Dale vs. Evil (2010 Sundance Film Festival Selection) Sundance Film Festival) along with "Trouble." The film also screened at the 2010 South by Southwest Music & Film Festival (SXSW). John's debut "Umlaut" EP has garnered industry buzz thanks in part to reviews by the Willamette Week, Rob Cullivan of the Portland Tribune, and Andy Valentine of the Eugene Weekly. "Ticking" has also been prominently featured on Portland's 94.7 KNRK and 101.9 KINK.
ground_truth: film director