Question: Who wrote the screenplay for a movie featuring ChristIan bale?
Context: Charles Randolph is an American screenwriter and producer for film and television.  Randolph has written screenplays for several films and TV movies including "The Life of David Gale" (2003), "The Interpreter" (2005), and "Love & Other Drugs" (2010).  Randolph received the Golden Globe Award for Best Screenplay, BAFTA Award for Best Adapted Screenplay and Academy Award for Best Adapted Screenplay for co-writing "The Big Short" in 2015. Adam Tsuei (; born October 26, 1959) is an entrepreneur, film producer, and director.  He was the former president of Sony Music Entertainment in the Greater China Region.  He has made and brought to the music world super idols as Jay Chou, Leehom Wang, F4 and Jolin Tsai, which made him been viewed as one of the most powerful masters behind the scene in entertainment industry.  In 2011, he successfully marketed the film "You Are the Apple of My Eye", a movie featuring a love story within a group of boys and a girl, which made a great hit among all Chinese-speaking countries.  Decided to dedicating to movie industry, Tsuei founded Amazing Film Studio in 2012 and served as CEO.  In 2013, by putting effort into producing, marketing and distributing, he presented the film" Tiny Times" and "Tiny Times 2".  Both of them quickly becomes the hottest topics among mainland China, Taiwan and Hong Kong.  In 2014, with the same legend combination of Angie Chai and Giddens Ko, he presented" Café.  Waiting.  Love", a romantic comedy with color of fantasy inside.  In the future of 2016, as a director and producer, Tsuei is going to present the film “The Tenants Downstairs”, adapted by Giddens Ko’s original novel.  There will be a film with black humor, fantasy, mystery and thriller in.  With the experience of being a professional manager in global enterprise for decades, Tsuei is aimed for building a total entertainment company for Greater China, including movie’s production, movie’s promotion, VFX, artist agency, music production and concert production. The Prestige is a 2006 British-American mystery thriller film directed by Christopher Nolan, from a screenplay adapted by Nolan and his brother Jonathan from Christopher Priest's 1995 novel of the same name.  Its story follows Robert Angier and Alfred Borden, rival stage magicians in London at the end of the 19th century.  Obsessed with creating the best stage illusion, they engage in competitive one-upmanship with tragic results.  The film stars Hugh Jackman as Robert Angier, Christian Bale as Alfred Borden, and David Bowie as Nikola Tesla.  It also stars Scarlett Johansson, Michael Caine, Piper Perabo, Andy Serkis, and Rebecca Hall.  The film reunites Nolan with actors Bale and Caine from "Batman Begins" and returning cinematographer Wally Pfister, production designer Nathan Crowley, film score composer David Julyan, and editor Lee Smith. The Machinist is a 2004 psychological thriller film directed by Brad Anderson and written by Scott Kosar.  The film stars Christian Bale and features Jennifer Jason Leigh, John Sharian, Aitana Sánchez-Gijón, and Michael Ironside in supporting roles.  The film is about Trevor Reznik (Bale), a machinist whose insomnia and psychological problems lead to a serious workplace accident involving a co-worker (Ironside).  After Reznik is fired, he goes into a downward spiral of paranoia and delusion.  The film was well-received by critics, particularly for Bale's performance.  It is an international co-production of the United Kingdom, France, Spain, and the United States. Death Train (also known as Detonator) is a 1993 made-for-TV movie featuring Pierce Brosnan, Patrick Stewart, Christopher Lee, Ted Levine, and Alexandra Paul.  The script was based on an Alistair MacLean novel of the same name, which in turn was based on an Alistair MacLean screenplay. British actor Christian Bale has starred in various films, as well as advertisements and a video game.  He made his acting debut in 1986, on the television film "".  The following year, he made his film debut starring alongside John Malkovich and Miranda Richardson in the war film "Empire of the Sun".  Bale's role of a young boy, interned in China by the Japanese, received praise from most film critics.  Two years later, Bale had a minor role in "Henry V", a drama film based on William Shakespeare's play "The Life of Henry the Fifth".  It has been considered one of the best Shakespeare film adaptations ever made.  In 1992, Bale starred as Jack Kelly in the Walt Disney musical drama "Newsies", which was a critical and commercial failure; however, it gained a cult following.  He received a role in the 1994 drama "Little Women", which garnered positive reviews.  Bale lent his voice for the Disney animated film "Pocahontas" in 1995, although it received a mixed reception and attained box office success.  He starred as British journalist Arthur Stuart in the Todd Haynes-directed drama "Velvet Goldmine" (1998).  Although critics were divided on the film, Bale's role was "eagerly anticipated".  Bale portrayed Demetrius in the critically praised 1999 film "A Midsummer Night's Dream", an adaptation of Shakespeare's play of the same name, directed by Michael Hoffman.  The same year, he portrayed Jesus of Nazareth in the television movie "Mary, Mother of Jesus". "Bale Out: RevoLucian's Christian Bale Remix!"  is a satirical dance remix by American composer Lucian Piane, also known as RevoLucian, released on February 2, 2009, to YouTube and Myspace.  The piece parodies Christian Bale by utilizing audio from a July 2008 rant made by the actor on the set of "Terminator Salvation".  Various other elements are used in the remix, including pulsating dance track beats and clips of Barbra Streisand from a 2006 exchange with a supporter of then-President George W. Bush, creating the impression of Streisand arguing with Bale. "R U Professional" is a 2009 satirical song by the American indie rock band The Mae Shi, inspired by a July 2008 outburst by actor Christian Bale on the set of "Terminator Salvation".  Bale was filming with actress Bryce Dallas Howard when he berated director of photography, Shane Hurlbut, for walking into his line of sight.  An audio recording of the incident appeared on website TMZ on February 2, 2009.  The Mae Shi composed and recorded the song later in the same day, and released it the next day.  The group stated that the piece was created to honor Bale.  The song parodies Bale by sampling his voice from the 2008 diatribe.  The chorus incorporates Bale's use of the word "professional" from his flare-up.  The lyrics reference several films the actor starred in, including "Newsies", "Swing Kids", "American Psycho", and "The Dark Knight". The Dark Knight is a 2008 superhero film directed, co-produced, and co-written by Christopher Nolan.  Featuring the DC Comics character Batman, the film is the second part of Nolan's "The Dark Knight Trilogy" and a sequel to 2005's "Batman Begins", starring an ensemble cast including Christian Bale, Michael Caine, Heath Ledger, Gary Oldman, Aaron Eckhart, Maggie Gyllenhaal and Morgan Freeman.  In the film, Bruce Wayne/Batman (Bale), Police Lieutenant James Gordon (Oldman) and District Attorney Harvey Dent (Eckhart) form an alliance to dismantle organized crime in Gotham City, but are menaced by a criminal mastermind known as the Joker (Ledger) who seeks to undermine Batman's influence and create chaos. The Big Short is a 2015 American biographical comedy-drama film directed by Adam McKay and written by McKay and Charles Randolph, based on the 2010 book "The Big Short: Inside the Doomsday Machine" by Michael Lewis about the financial crisis of 2007–2008 which was triggered by the United States housing bubble.  The film stars Christian Bale, Steve Carell, Ryan Gosling, Brad Pitt, Melissa Leo, Hamish Linklater, John Magaro, Rafe Spall, Jeremy Strong, Finn Wittrock, and Marisa Tomei.
Answer: Charles Randolph