Question: Do director of film The Postman (Film) and director of film Thunder River Feud share the same nationality?

<P0-S0> Rachel Feldman( born August 22, 1954) is an American director of film and television and screenwriter of television films. <SEP> <P1-S0> It is directed by, produced by, and stars Kevin Costner, with the screenplay written by Eric Roth and Brian Helgeland, based on David Brin's 1985 book of the same name. <P1-S1> The Postman is a 1997 American post-apocalyptic adventure film. <P1-S2> The film also features Will Patton, Larenz Tate, Olivia Williams, James Russo, and Tom Petty. <P1-S3> It is set in a post-apocalyptic and neo-Western version of the United States in the then near- future year of 2013, sixteen- plus years after unspecified apocalyptic events, starting with the breakdown of society through “ hate crimes and racially motivated attacks( by) a militia- like group ” led by Nathan Holn, progressing to war, followed by plagues, that collectively left a huge impact on human civilization and erased most technology. <P1-S4> Like the book, the film follows the story of a nomadic drifter( Costner) who stumbles across the uniform of an old United States Postal Service mail carrier, and unwittingly inspires hope through an empty promise of a" Restored United States of America." <P1-S5> Released on Christmas of 1997 from Warner Bros.," The Postman" was a major critical and commercial failure, grossing a total of$ 20 million worldwide. <P1-S6> Nonetheless, it was nominated for three Saturn Awards. <SEP> <P2-S0> The film stars Ray "Crash" Corrigan, John 'Dusty' King, Max Terhune, Jan Wiley, Jack Holmes and Rick Anderson. <P2-S1> Thunder River Feud is a 1942 American Western film directed by S. Roy Luby and written by John Vlahos and Earle Snell. <P2-S2> The film was released on January 9, 1942, by Monogram Pictures. <SEP> <P3-S0> Brian Johnson( born 1939 or 1940) is a British designer and director of film and television special effects. <SEP> <P4-S0> His accolades include two Academy Awards, three Golden Globe Awards, one Primetime Emmy Award, and two Screen Actors Guild Awards. <P4-S1> Costner began his acting career with" Sizzle Beach, U.S.A."( 1981). <P4-S2> Following a few minor supporting parts, he rose to prominence with his portrayal of Eliot Ness in" The Untouchables"( 1987). <P4-S3> This was followed by a successful period in his career with starring roles in" No Way Out"( 1987)," Bull Durham"( 1988)," Field of Dreams"( 1989)," Dances with Wolves"( 1990), for which he won two Academy Awards," JFK"( 1991),( 1991)," The Bodyguard"( 1992), and" A Perfect World"( 1993). <P4-S4> In 1995, Costner starred in and co-produced" Waterworld". <P4-S5> The most expensive film ever made at the time, it was a box office disappointment( which nonetheless made a small profit) that marked a downturn in his career. <P4-S6> His second directorial feature," The Postman",( 1997) was another disappointment. <P4-S7> He has since starred in some somewhat unsuccessful films including" Message in a Bottle"( 1999)," For Love of the Game"( 1999)," Thirteen Days"( 2000)," 3000 Miles to Graceland"( 2001)," Dragonfly"( 2002)," Rumor Has It"( 2005)," The Guardian"( 2006)," Mr. Brooks"( 2007)," 3 Days to Kill"( 2014)," McFarland, USA"( 2015)," Draft Day"( 2014), and" Criminal"( 2016). <P4-S8> Nevertheless, in recent years he has had supporting parts in critically favored films including" The Upside of Anger"( 2005)," Man of Steel"( 2013)," Hidden Figures"( 2016)," Molly's Game"( 2017), and" The Art of Racing in the Rain"( 2019). <P4-S9> On television, Costner portrayed Devil Anse Hatfield in the miniseries" Hatfields& McCoys"( 2012), winning the Primetime Emmy Award for Outstanding Lead Actor in a Miniseries or a Movie. <P4-S10> Since 2018, he stars as John Dutton on drama series" Yellowstone". <P4-S11> Kevin Michael Costner( born January 18, 1955) is an American actor, director, producer, and musician. <SEP> <P5-S0> S. Roy Luby born Solomon Roy Luby on 8 August 1904, New York City died 19 August 1976 in Los Angeles was an American animator, editor, and film director. <P5-S1> He used the pseudonyms of Roy Claire, Roy S. Luby, J. Roy Luby, Roy Luby, Sol Luby, and Russell Roy.