Question: Who directed the American-Chinese psychological film in which Lauren Cohan starred in?

Context paragraphs:
Maggie Greene: Maggie Greene is a fictional character from the comic book series "The Walking Dead", portrayed by Lauren Cohan in the television adaptation.

Reach Me: Reach Me is a 2014 American drama film directed and written by John Herzfeld.  The film stars Sylvester Stallone, Kyra Sedgwick, Terry Crews, Thomas Jane, Kevin Connolly, Lauren Cohan, Kelsey Grammer, and Tom Berenger.

Lauren Cohan: Lauren Cohan (born January 7, 1982) is a British American actress and model, best known for her role as Maggie Greene on "The Walking Dead" (2011–present).  She is also known for her recurring roles on the television series "Supernatural" (2007–2008), "Chuck" (2011) and "The Vampire Diaries" (2010–2012), and in the comedy film "" (2006), the psychological thriller "The Boy", and for her role as DC Comics character Martha Wayne in "" (2016).

Supernatural (season 3): The third season of "Supernatural", an American fantasy horror television series created by Eric Kripke, premiered on October 4, 2007, and concluded on May 15, 2008.  Traveling throughout America, protagonists Sam (Jared Padalecki) and Dean Winchester (Jensen Ackles) use their father's journal to help them carry on the family business—saving people and hunting supernatural creatures.  The season begins with the brothers tracking down the demons released from Hell in the previous season finale.  They become allies with a demon named Ruby (Katie Cassidy), who claims to know a way to release Dean from his demonic pact—he had sold his soul to a demon and was given a year to live in exchange for Sam's resurrection—and wants to protect them from the new demonic leader Lilith.  As Dean's deadline approaches, their efforts are further hindered by Bela Talbot (Lauren Cohan), a professional thief of occult items who is often at odds with the Winchesters.

Chuck Versus the Masquerade: "Chuck Versus the Masquerade" is the sixteenth episode of the fourth season of "Chuck".  Although taking place on and around Valentine's Day, the episode actually aired originally on February 21, 2011, one week later.  Valentine's Day is ruined when the team is dispatched to protect heiress Vivian McArthur (Lauren Cohan).  John Casey is tempted by an offer from National Clandestine Service Director Jane Bentley (Robin Givens), and Morgan Grimes makes a big decision.

All Eyez on Me (film): All Eyez on Me is a 2017 American biographical drama film about hip-hop artist Tupac Shakur, directed by Benny Boom and written by Jeremy Haft, Eddie Gonzalez and Steven Bagatourian.  Titled after Shakur's 1996 fourth studio album of the same name, the film stars Demetrius Shipp Jr. as Shakur with Kat Graham, Lauren Cohan, Hill Harper and Danai Gurira in supporting roles.

Chuck Versus the First Bank of Evil: "Chuck Versus the First Bank of Evil" is the seventeenth episode of the fourth season of "Chuck".  It originally aired on February 28, 2011.  Chuck Bartowski encourages Vivian McArthur (Lauren Cohan) to get in touch with her inner villain for a mission; Morgan Grimes' search for a new roommate has unexpected results.

Seven Keys to Baldpate (play): Seven Keys to Baldpate is a 1913 play by George M. Cohan based on a novel by Earl Derr Biggers.  The dramatization was one of Cohan's most innovative plays.  It baffled some audiences and critics but became a hit, running for nearly a year in New York, another year in Chicago and receiving later revivals; Cohan starred in the 1935 revival.  Cohan adapted it as a film in 1917, and it was adapted for film six more times, and later for TV and radio.  The play "mixes all the formulaic melodrama of the era with a satirical [farcical] send-up of just those melodramatic stereotypes."

Made to Suffer: "Made to Suffer" is the eighth episode and mid-season finale of the third season, and 27th episode overall of the post-apocalyptic horror television series "The Walking Dead".  It was directed by Billy Gierhart and written by Robert Kirkman, and aired on AMC in the United States on December 2, 2012.  In this episode, Rick (Andrew Lincoln), Daryl (Norman Reedus), Michonne (Danai Gurira), and Oscar (Vincent Ward) enter Woodbury in search of Glenn (Steven Yeun) and Maggie (Lauren Cohan).  Meanwhile, a new group of survivors encounters the prison.

The Boy (2016 film): The Boy (previously known as The Inhabitant) is a 2016 American-Chinese psychological horror film directed by William Brent Bell and written by Stacey Menear.  The film stars Lauren Cohan and Rupert Evans.  Filming began on March 10, 2015, in Victoria, British Columbia.  The film was released by STX Entertainment on January 22, 2016.

Supporting paragraphs: Lauren Cohan The Boy (2016 film)
Answer: William Brent Bell