Question: Who wrote the screenplay for American film director and screenwriter Brian De Palma's "The Bonfire of the Vanities"?

Context paragraphs:
Redacted (film): Redacted is a 2007 American war film written and directed by Brian De Palma.  It is a fictional dramatization, loosely based on the 2006 Mahmudiyah killings in Mahmoudiyah, Iraq, when U.S. Army soldiers raped an Iraqi girl and murdered her along with her family.  This film, which is a companion to an earlier film by De Palma, 1989's "Casualties of War", was shot in Jordan.

Brian De Palma: Brian Russell De Palma (born September 11, 1940) is an American film director and screenwriter.  He is considered part of the New Hollywood wave of filmmaking.

William Finley (actor): William Finley (September 20, 1940 – April 14, 2012) was an American actor who has appeared in the films "Simon", "Silent Rage", "Phantom of the Paradise", "Sisters", and "The Wedding Party".  He had a long-running friendship and collaboration with director Brian De Palma, beginning with the student films "Woton's Wake" (1962) and "Murder à la Mod" (1968).  He also acted in De Palma's 2006 release "The Black Dahlia".  Under the name W. Franklin Finley, he wrote the screenplay for the 1983 film "The First Time".  He was also the co-author of the 1985 book "Racewalking".

Mission: Impossible (film): Mission: Impossible is a 1996 American action spy film directed by Brian De Palma, produced by and starring Tom Cruise.  Based on the , the plot follows Ethan Hunt (Cruise) and his mission to uncover the mole who has framed him for the murders of his entire Impossible Missions Force (IMF) team.  Work on the script had begun early with filmmaker Sydney Pollack on board, before De Palma, Steven Zaillian, David Koepp, and Robert Towne were brought in.  "Mission: Impossible" went into pre-production without a shooting script.  De Palma came up with some action sequences, but Koepp and Towne were dissatisfied with the story that led up to those events.

De Palma (film): De Palma is a 2015 American documentary film directed by Noah Baumbach and Jake Paltrow about the director and screenwriter Brian De Palma.  It world premiered, out of competition, at the 72nd edition of the Venice Film Festival.

The Bonfire of the Vanities (film): The Bonfire of the Vanities is a 1990 American satirical black comedy film directed by Brian De Palma.  The screenplay, written by Michael Cristofer, was adapted from the best-selling novel of the same name by Tom Wolfe.  The film, which was a critical and commercial flop, stars Tom Hanks, Bruce Willis, Melanie Griffith, and Kim Cattrall.  The original music score was composed by Dave Grusin.

Snake Eyes (film): Snake Eyes is a 1998 American conspiracy thriller film directed by Brian De Palma, featuring his trademark use of long tracking shots and split screens.  It starred Nicolas Cage, Gary Sinise and Carla Gugino.  The film was written by David Koepp and De Palma, and was released to theaters on August 7, 1998.  It cost an estimated $73 million to produce and returned $103 million worldwide, but received mixed to negative reviews from critics.

The Wedding Party (1969 film): The Wedding Party is a 1969 American film farce created as a joint effort by Sarah Lawrence theatre professor Wilford Leach and two of his students, protégé Brian De Palma and Cynthia Monroe, who bankrolled the project.  Leach went on to a successful career as a Tony Award-winning theatre director, while De Palma continued as an auteur of films frequently emulating the themes and techniques of Alfred Hitchcock.

Obsession (1976 film): Obsession is a 1976 psychological thriller/mystery film directed by Brian De Palma, starring Cliff Robertson, Geneviève Bujold, John Lithgow, and Stocker Fontelieu.  The screenplay was by Paul Schrader, from a story by De Palma and Schrader.  Bernard Herrmann provided the film's soundtrack prior to his death in 1975.  The story is about a New Orleans businessman who is haunted by guilt following the death of his wife and daughter during a kidnapping-rescue attempt.  Years after the tragedy, he meets and falls in love with a young woman who is the exact look-alike of his long dead wife.

Robert J. Avrech: Robert J. Avrech is an American screenwriter, whose works include the 1984 film "Body Double" (with Brian De Palma) and "A Stranger Among Us" (1992).  He won an Emmy Award for his screenplay, "The Devil's Arithmetic," based on the young adult novel by Jane Yolen.

Supporting paragraphs: The Bonfire of the Vanities (film) Brian De Palma
Answer: Michael Cristofer