Question: Do Melville Shavelson and Jason Reitman have different nationalities?

full_context: Document 1: Ivan Reitman: Ivan Reitman, OC (born October 27, 1946) is a Slovak-Canadian film producer and director, best known for his comedy work, especially in the 1980s and 1990s. He is the owner of The Montecito Picture Company, founded in 1998.
Document 2: Juno (film): Juno is a 2007 American coming of age comedy-drama independent film directed by Jason Reitman and written by Diablo Cody. Ellen Page stars as the title character, an independent-minded teenager confronting an unplanned pregnancy and the subsequent events that put pressures of adult life onto her. Michael Cera, Jennifer Garner, Jason Bateman, Allison Janney and J. K. Simmons also star. Filming spanned from early February to March 2007 in Vancouver, British Columbia. It premiered on September 8 at the 2007 Toronto International Film Festival, receiving a standing ovation.
Document 3: Jason Bateman: Jason Kent Bateman (born January 14, 1969) is an American actor, director, and producer. He began acting on television in the early 1980s on "Little House on the Prairie", and in the sitcoms "Silver Spoons" and "The Hogan Family". In the 2000s, he became known for his role of Michael Bluth using deadpan comedy in the critically acclaimed sitcom "Arrested Development", for which he won a Golden Globe and a Satellite Award. He has had starring roles in the films "Juno" (2007), "Hancock" (2008), "Up in the Air" (2009), "The Switch" (2010), "Paul" (2011), "Horrible Bosses" (2011), "The Change-Up" (2011), "Identity Thief" (2013), "Bad Words" (2013), "Horrible Bosses 2" (2014), "The Gift" (2015), and "Zootopia" (2016), as well as the 2017 Netflix series "Ozark".
Document 4: Delmer Daves: Delmer Lawrence Daves (July 24, 1904 – August 17, 1977) was an American screenwriter, director and producer.
Document 5: Melville Shavelson: Melville Shavelson (April 1, 1917 – August 8, 2007) was an American film director, producer, screenwriter, and author. He was President of the Writers Guild of America, West (WGAw) from 1969 to 1971, 1979 to 1981, and 1985 to 1987.
Document 6: Jason Schwartzman: Jason Francesco Schwartzman (born June 26, 1980) is an American actor, screenwriter and musician. He is known for his frequent collaborations with Wes Anderson, such as "Rushmore" (1998), "The Darjeeling Limited" (2007), "Fantastic Mr. Fox" (2009), "Moonrise Kingdom" (2012) and "The Grand Budapest Hotel" (2014). He also starred in other films, such as "Spun" (2003), "I Heart Huckabees" (2004), "Shopgirl" (2005), "Marie Antoinette" (2006), "Funny People" (2009), "Scott Pilgrim vs. the World" (2010), and "Saving Mr. Banks" (2013).
Document 7: Billy Wilder: Samuel "Billy" Wilder ( ; ] ; June 22, 1906March 27, 2002) was an Austrian-American filmmaker, screenwriter, producer, artist, and journalist whose career spanned more than five decades. He is regarded as one of the most brilliant and versatile filmmakers of Hollywood's golden age. With "The Apartment", Wilder became the first person to win Academy Awards as producer, director, and screenwriter for the same film.
Document 8: Melvin Frank: Melvin Frank (13 August 1913 in Chicago, Illinois – 13 October 1988 in Los Angeles, California) was an American screenwriter, film producer and film director. He is known for his work on films such as "Mr. Blandings Builds His Dream House" (1948), "The Court Jester" (1956), and "A Touch of Class" (1973).
Document 9: Jerry Belson: Jerry Belson (July 8, 1938 – October 10, 2006) was a writer, director, and producer of Hollywood films for over forty years.
Document 10: List of accolades received by Up in the Air: "Up in the Air" is a 2009 American comedy-drama film directed by Jason Reitman and co-written by Reitman and Sheldon Turner. The film is an adaptation of the eponymous 2001 novel by Walter Kirn. "Up in the Air" was screened as a "sneak preview" at the Telluride Film Festival on September 6, 2009, before its world premiere at the Toronto International Film Festival on September 12, 2009. "Up in the Air" was released in the United States on December 4, 2009; playing on 15 screens in its first weekend, it grossed over $1.1 million. The film opened nationwide on December 23, 2009, earning over $11 million its first weekend in wide release. The film earned $79 million over 18 weeks in the United States and Canada, with an additional $83 million in overseas markets.
Document 11: Young Adult (film): Young Adult is a 2011 American comedy-drama film directed by Jason Reitman, from a screenplay written by Diablo Cody, and starring Charlize Theron. Reitman and Cody worked together previously on "Juno" (2007). "Young Adult" began a limited release on December 9, 2011, before expanding to a wide release on December 16. It received generally positive reviews.
Document 12: Jason Reitman: Jason Reitman ( ; born October 19, 1977) is a Canadian-American film director, screenwriter, and producer, best known for directing the films "Thank You for Smoking" (2005), "Juno" (2007), "Up in the Air" (2009), and "Young Adult" (2011). As of February 2, 2010, he has received one Grammy Award and four Academy Award nominations, two of which are for Best Director. Reitman is a dual citizen of Canada and the United States. He is the son of director Ivan Reitman.
Document 13: George Melford: George H. Melford (February 19, 1877 – April 25, 1961) was an American stage and film actor, director, producer, and screenwriter. Often taken for granted as a director today, the stalwart Melford's name by the 1920s was, like Cecil B. DeMille's, appearing in big bold letters above the title of his films.
Document 14: Mel Stuart: Mel Stuart (born Stuart Solomon; September 2, 1928 – August 9, 2012) was an American film director and producer, who often worked with producer David L. Wolper, whose production firm he worked for 17 years, before going freelance.
Document 15: Mel Smith: Melvin Kenneth "Mel" Smith (3 December 1952 – 19 July 2013) was an English comedian, writer, film director, producer and actor.
ground_truth: yes