Question: Who was the director of the 2006 German-American political war thriller film for which James Newton Howard made the film score?

Context paragraphs:
Batman Begins (soundtrack): Batman Begins: Original Motion Picture Soundtrack is the soundtrack album to Christopher Nolan's 2005 film "Batman Begins".  It was released on June 15, 2005.  The soundtrack drew from the film score, composed by Hans Zimmer and James Newton Howard, as well as contributions by Ramin Djawadi, Lorne Balfe and Mel Wesson.

Atlantis: The Lost Empire (soundtrack): Atlantis: The Lost Empire, released on May 22, 2001, is the soundtrack to the 2001 Disney animated film of the .  Consisting primarily of James Newton Howard's score, it also includes the Diane Warren penned song, "Where the Dream Takes You", performed by Mýa.

Blood Diamond: Blood Diamond is a 2006 German-American political war thriller film co-produced and directed by Edward Zwick, starring Leonardo DiCaprio, Jennifer Connelly and Djimon Hounsou.  The title refers to blood diamonds, which are diamonds mined in war zones and sold to finance conflicts, and thereby profit warlords and diamond companies across the world.

The Happening (2008 soundtrack): The Happening is the soundtrack to the 2008 film of the same name, composed by James Newton Howard.  It was released on June 3, 2008.  This album is the sixth collaboration between composer James Newton Howard and M. Night Shyamalan.  The main theme is a simple rhythmic motif of three notes followed by a grace note to the fourth note, sometimes played as a minor second and sometimes as a minor third.  The soundtrack was recorded at the Sony Scoring Stage.

James Newton Howard: James Newton Howard (born June 9, 1951) is an American composer, conductor, music producer and musician.  He has scored over 100 films and is the recipient of a Grammy Award, Emmy Award, and eight Academy Award nominations.  His film scores include "Pretty Woman" (1990), "The Prince of Tides" (1991), "The Fugitive" (1993), "The Devil's Advocate" (1997), "The Sixth Sense" (1999), "Dinosaur" (2000), "" (2001), "Treasure Planet" (2002), "Signs" (2002), "The Village" (2004), "King Kong" (2005), "Batman Begins" (2005), "I Am Legend" (2007), "Blood Diamond" (2006), "The Dark Knight" (2008), "The Bourne Legacy" (2012), "The Hunger Games" series (2012–2015), "Nightcrawler" (2014) and "Fantastic Beasts and Where to Find Them" (2016).  He has collaborated with directors M. Night Shyamalan, having scored nine of his films since "The Sixth Sense," and Francis Lawrence, having scored all of his films since "I Am Legend".

The Last Airbender (soundtrack): The Last Airbender is the soundtrack album of the fantasy adventure film "The Last Airbender", directed by M. Night Shyamalan.  The score was composed by James Newton Howard.  It was released on June 29, 2010 by Lakeshore Records.

Michael Clayton (soundtrack): Michael Clayton: Original Motion Picture Soundtrack is the original soundtrack of the 2007 drama film, "Michael Clayton", starring George Clooney, Tom Wilkinson, and Tilda Swinton.  The original score was composed by James Newton Howard.  The album was released on September 25, 2007 on the Varèse Sarabande label.

Gaili Schoen: Gaili Schoen (born Susan Gaili Schoen, in Venice, California) is an American film composer, orchestrator, and pianist.  She is best known for her scores for the films "Festival in Cannes" starring Maximilian Schell, Anouk Aimée, Ron Silver, and Greta Scacchi, and "Déjà Vu", starring Stephen Dillane and Vanessa Redgrave, both directed by Henry Jaglom.  Her television work includes the score for the 2007 PBS documentary "Annie Leibovitz: A Life Through A Lens" which she composed with score producer James Newton Howard.  Schoen composed a 52-piece orchestral score for the 2008 feature film "Noble Things" starring Michael Parks, Ryan Hurst, and country singer Lee Ann Womack, and scored the 2011 documentary "The Ghost of War", about the RMS Queen Mary.

Space Jam (soundtrack): Space Jam: Music from and Inspired by the Motion Picture is the original soundtrack album of the 1996 film starring Michael Jordan and the Looney Tunes cast.  An album featuring the film's score by James Newton Howard was also released.  The soundtrack was released by Warner Sunset and Atlantic Records on November 12, 1996.  The worldwide smash hit "I Believe I Can Fly" by R. Kelly was first released on the soundtrack.

The Hanging Tree (The Hunger Games song): "The Hanging Tree" is a song performed by composer James Newton Howard featuring vocals from American actress Jennifer Lawrence for the 2014 film "", in the third installment of "The Hunger Games" film series.  The song did not appear on the original official soundtrack album for the film (although it does appear on the score album), but was added during the digital re-release of the .  The lyrics were written by "The Hunger Games" author Suzanne Collins and originally appeared in her novel "Mockingjay".  The music was composed by Jeremiah Fraites and Wesley Schultz of American indie folk band The Lumineers.

Supporting paragraphs: James Newton Howard Blood Diamond
Answer: Edward Zwick