Question: Who is the director of a film which featured the winner of FX's inaugural MMA competition?

full_context: Document 1: Thai Boxing: A Fighting Chance: Thai Boxing: A Fighting Chance is a 2002 documentary by independent producer Susanne Cornwall Carvin. The hour-long film, narrated by British actor Jason Statham, follows the lives of three boxers as they prepare to compete in muay thai, also known as Thai boxing. One character, Sam Sheridan, is a 27-year-old Harvard University graduate who has traveled to Thailand to learn the art of muay thai from Apidej Sit-Hirun, a retired boxing champion. The second primary character, Gong-Prai Sorjintana, is a 13-year-old boy from the town of Ayutthaya; his mother runs a boxing camp for troubled teenagers and he's fighting to raise money for university. The third character, Boon-Term Kitmuti, is a 29-year-old mother of two children who wanted to box when she was younger, before muay thai was legal for women. Now that there is an active muay thai league for women, she has decided to travel to Bangkok and learn the sport, despite the disapproval of her husband. Her husband left because he didn't like women anymore.
Document 2: Fight Valley: Fight Valley is a 2016 action film directed by Rob Hawk. It stars Susie Celek, as well as mixed martial artists Miesha Tate, Holly Holm, and Cris Cyborg.
Document 3: Michael Johnson (fighter): Michael Julian Johnson (born June 4, 1986) is an American mixed martial artist who competes in the lightweight division of the Ultimate Fighting Championship. A professional MMA competitor since 2008, Johnson mostly competed in his regional circuit, before signing onto the Ultimate Fighting Championship to appear on "". As of July 2017, he is #9 in the official UFC lightweight rankings.
Document 4: Manny (film): Manny is a 2014 documentary directed by Leon Gast and Ryan Moore. It covers the life of professional boxer Manny Pacquiao, from his impoverished life as a young boy to his boxing glory to Philippine politics. The film is narrated by Liam Neeson. Additionally, interviews of friends, family members, and people associated with professional boxing, combined with archival footage of Pacquiao, were used throughout the movie. Notable appearances in the film include Oscar De La Hoya, Jimmy Kimmel, Jeremy Piven, and Mark Wahlberg.
Document 5: Michael Bisping: Michael Bisping ( , ; born 28 February 1979) is an English mixed martial artist and actor. He fights in the Ultimate Fighting Championship (UFC), and is the current UFC Middleweight Champion. He is a former Cage Rage Light Heavyweight Champion, and "The Ultimate Fighter 3" Light Heavyweight Tournament winner. At UFC 78, he became the first English fighter in a UFC main event and at UFC 199, he became the first English fighter to win a UFC championship.
Document 6: Women's mixed martial arts: While mixed martial arts is primarily a male dominated sport, it does have female athletes. Female competition in Japan includes promotions such as DEEP Jewels. Now defunct promotions that featured female fighters were Valkyrie, and Smackgirl. Professional mixed martial arts organizations in the United States that invite women to compete are industry leader Ultimate Fighting Championship, the all female Invicta Fighting Championships, Resurrection Fighting Alliance, Bellator Fighting Championships, and Legacy Fighting Championship. Now defunct promotions that featured female fighters were Strikeforce and EliteXC.
Document 7: Michael Chandler: Michael Chandler Jr. (born April 24, 1986) is an American mixed martial artist fighting in the lightweight division. He is currently under contract with Bellator MMA where he is a former two-time Bellator Lightweight Champion. He was also the winner of the . Chandler is currently ranked as the #7 Lightweight in the world accrording to FightMatrix.com and is regarded as one of the top 20 greatest Lightweight fighters of all time. He was the 2011 Breakthrough Fighter of the Year. He holds notable victories over UFC Lightweight Champions Benson Henderson and Eddie Alvarez.
Document 8: Michael Chiesa: Michael Keith Chiesa ( ; born December 7, 1987) is an American mixed martial artist. A professional MMA competitor since 2008, Chiesa was the winner of FX's inaugural . He currently fights for the UFC in the lightweight division where he is the #9 contender in official UFC rankings.
Document 9: Anthony Pettis: Anthony Paul Pettis (born January 27, 1987) is an American mixed martial artist currently competing as a Lightweight in the Ultimate Fighting Championship (UFC), where he is the former UFC Lightweight Champion. Pettis was also the final WEC Lightweight Champion prior to the promotion being merged into the UFC. At one point, he was ranked as a top-ten pound for pound fighter. He is currently ranked #13 in the official UFC lightweight rankings.
Document 10: Game Face (film): Game Face is a 2015 sports documentary film directed by Michiel Thomas and produced by Mark Schoen. The documentary revolves around two LGBTQ American athletes, professional mixed martial artist Fallon Fox and college basketball player Terrence Clemens. Both stories run parallel to each other to follow the journey of the first transgender woman professional MMA fighter and Clemens, a closeted gay male, who gets accepted to play basketball in Oklahoma. The film follows both athletes through their coming out process with the support of their friends and family.
Document 11: Chris Leben: Christian Cyrus Leben (born July 21, 1980) is a retired American mixed martial artist. He formerly competed with the UFC as a Middleweight, compiling a record of 12-10 in 22 appearances for the organization. Leben first appeared in the inaugural season of "The Ultimate Fighter" reality series, and has also fought in the now-defunct WEC. He began his UFC career with five victories in a row before suffering a knockout loss to future UFC Middleweight Champion Anderson Silva. Leben was the inaugural WEC Middleweight Champion.
Document 12: Beyond the Mat: Beyond the Mat is a 1999 documentary directed, written, produced and narrated by Barry W. Blaustein. The film focuses on the lives of professional wrestlers outside of the ring, primarily Mick Foley, Terry Funk, and Jake Roberts, as well as some aspiring wrestlers. It focuses on the World Wrestling Federation (WWF), Extreme Championship Wrestling (ECW) during its rise in popularity, and many other independent wrestlers and organizations. The film was originally released in American theaters in March 2000 and later released on VHS and DVD.
Document 13: Fight Life: Fight Life is a feature-length documentary on the sport of mixed martial arts. The film is directed by independent filmmaker James Z. Feng and produced by RiLL Films. The film focuses on the lives of professional mixed martial arts fighters outside the cage, primarily profiling Jake Shields, and Lyle Beerbohm. The film unveils the sport of Mixed martial arts and what it takes to be a modern-day professional fighter. Many notables MMA stars and experts are featured in this film, including: Nick Diaz, Gilbert Melendez, Chuck Liddell, Frank Shamrock, Miesha Tate, John McCarthy, Julianna Pena, Michael Chiesa, Herschel Walker, Sam Sheridan, Mark Coleman, Tyron Woodley, Ryan Schultz, Matt Lindland, Mike Swick, and Cody McKenzie. In 2013, "Fight Life" went on to win the Best Documentary Award at the United Film Festival.
Document 14: The Hurt Business: The Hurt Business (stylized as "THE HURT BUSINE$$") is a 2016 American documentary film about mixed martial arts, its history, and rise from a stigmatized, fringe event to a mainstream sport. It is directed by Vlad Yudin and narrated by Kevin Costner.
Document 15: Conor McGregor: Conor Anthony McGregor (Irish: "Conchúr Antóin Mac Gréagóir" ; born 14 July 1988) is an Irish professional mixed martial artist and professional boxer who is currently signed to the Ultimate Fighting Championship (UFC). He is the reigning UFC Lightweight Champion, and former UFC Featherweight Champion. During his mixed martial arts (MMA) career, McGregor has competed as a featherweight, lightweight, and welterweight. As of 2017, McGregor is ranked 2nd on UFC's pound for pound rankings.
ground_truth: James Z. Feng