Question: Which film has the director who is older than the other, Detroit 9000 or A Conversation with Gregory Peck? 

<P0-S0> The Purple Plain, also known as Llanura Roja, is a 1954 British war film, directed by Robert Parrish, with Gregory Peck playing a Royal Canadian Air Force pilot serving in the Royal Air Force in the Burma Campaign in the closing months of the World War II, who is battling with depression after having lost his wife. <P0-S1> It was nominated for two BAFTA awards. <SEP> <P1-S0> Arthur Ronald <P1-S1> He also directed and produced numerous episodes of the American legal drama" Perry Mason", as well as episodes of" Starsky& Hutch MannixI Spy My Friend Tony," The Dukes of Hazzard Steve Canyon", and" Young Daniel Boone". <P1-S2> Marks( August 2, 1927 – November 13, 2019) was an American film and television director, writer, producer and distributor best known for his work in the blaxploitation genre, directing films such as" Bonnie's KidsDetroit 9000 Friday FosterBucktown The Monkey Hu$tle" and" J. D.'s Revenge". <SEP> <P2-S0> Ethan Gregory Peck( born March 2, 1986) is an American actor. <P2-S1> He is the grandson of actor Gregory Peck, and his first wife, Finnish- born Greta Kukkonen. <SEP> <P3-S0> Kopple followed the actor as he embarked on a live speaking tour throughout the United States reflecting on his life and career. <P3-S1> The film also looks at Peck's home life with his family, as well as his public appearances where he meets such notable individuals as then President of the United States Bill Clinton, then French President Jacques Chirac, and filmmaker Martin Scorsese. <P3-S2> A Conversation with Gregory Peck is a 1999 American documentary film directed by Barbara Kopple. <P3-S3> " A Conversation with Gregory Peck" was part of the PBS documentary series" American Masters" and was screened out of competition at the 2000 Cannes Film Festival. <P3-S4> It is featured on a 2005 2- disc collector's edition of" To Kill a Mockingbird". <SEP> <P4-S0> Originally marketed as a blaxploitation film, it had a resurgence on video 25 years later. <P4-S1> Detroit 9000 is a 1973 American action film directed by Arthur Marks from a screenplay by Orville H. Hampton. <SEP> <P5-S0> She has won two Academy Awards, the first in 1976 for" Harlan County, USA", about a Kentucky miners' strike, and the second in 1991 for" American Dream," the story of the Hormel Foods strike in Austin, Minnesota in 1985- 86. <P5-S1> Kopple also directed" Bearing Witness", a 2005 documentary about five women journalists stationed in combat zones during the Iraq War. <P5-S2> She is known for her work with artists, including" A Conversation With Gregory Peck" as well as documentaries on Mike Tyson, Woody Allen, and Mariel Hemingway. <P5-S3> She was on tour with the Dixie Chicks when lead singer Natalie Maines criticized the Iraq War. <P5-S4> Barbara Kopple( born July 30, 1946) is an American film director known primarily for her documentary work. <P5-S5> The film,, debuted at the Toronto International Film Festival. <P5-S6> It went on to win a Special Jury Prize at the Chicago International Film Festival, and two Audience awards( Sydney Film Festival and Aspen Film Fest). <P5-S7> She has directed episodes of the television drama series and" Oz", winning a Directors Guild of America award for the former.