A Very Harold & Kumar 3D Christmas is a 2011 3D stoner comedy Christmas film directed by Todd Strauss-Schulson, written by Jon Hurwitz and Hayden Schlossberg and starring John Cho, Kal Penn and Neil Patrick Harris.
 It is a sequel to the 2008 film "Harold & Kumar Escape from Guantanamo Bay" and the third installment of the "Harold & Kumar" series.
 The plot follows Harold (Cho) and Kumar (Penn), two estranged friends who embark on an adventure to find a new Christmas tree after Kumar destroys the original.
Andrea Kay "Missi" Pyle (born November 16, 1972) is an American actress and singer.
 She has appeared in several films, including the award-winning films "The Artist", "Galaxy Quest", "", "Big Fish", "50 First Dates", "Charlie and the Chocolate Factory", "Harold & Kumar Escape from Guantanamo Bay" and "Gone Girl".
Harold & Kumar is the name for a series of American stoner comedy films starring John Cho (Harold) and Kal Penn (Kumar).
 The first film, "Harold & Kumar Go to White Castle", was released on July 30, 2004, by New Line Cinema and spawned a sequel titled "Harold & Kumar Escape from Guantanamo Bay", released four years later. "
A Very Harold & Kumar 3D Christmas", the third installment of the series, opened nationwide in the U.S. on November 4, 2011.
Dirt Nasty is the self-titled debut album by artist Dirt Nasty, also known as Simon Rex.
 Dirt Nasty was released by Shoot To Kill Music in association with Myspace Records.
 The album's most popular track was "1980," which was distributed on MySpace and iTunes.
 Dirt Nasty is credited as the impetus behind Mickey Avalon's personal rediscovery of, and subsequent success in, hip hop.
 Mickey Avalon's song "My Dick" (featuring Dirt Nasty and Andre Legacy) was featured in the 2008 movie "Harold & Kumar Escape from Guantanamo Bay".
Harold & Kumar Escape from Guantanamo Bay is a 2008 American stoner comedy film, and the second installment of the "Harold & Kumar" series.
 The film was written and directed by Jon Hurwitz and Hayden Schlossberg.
Herschman is perhaps most known for his role as Glen in the 2006 film, "Accepted".
 Adam also stars as Archie in "Harold & Kumar Escape from Guantanamo Bay" (2008), Phillip in "Soul Men" and as Mr. Pickle's employee in "I Now Pronounce You Chuck and Larry".
 He has also appeared in the extended version of "Walk Hard" as Jerry Garcia.
 He has an appearance in the film "House Broken" (2009).
 In 2015, Herschman appeared in "Hot Tub Time Machine 2" as J-Bird.
Harold & Kumar Go to White Castle (alternatively known as Harold & Kumar Get the Munchies) is a 2004 American stoner comedy film and the first installment of the "Harold & Kumar" series.
 The film was written by Jon Hurwitz and Hayden Schlossberg, and directed by Danny Leiner.
Guantanamo: My Journey is the autobiography of David Hicks, an Australian who was held in the U.S. Guantanamo Bay detention camp for years before eventually pleading guilty to the charge of "material support to terrorism" in a military commission trial.
 The first 174 pages of the book details his early life, and subsequent standard military training in Kosovo, Pakistan and Afghanistan.
 The book heavily details Hicks' time spent in Guantanamo Bay prison, where he spent 5 and a half years following his capture in 2001.
 The book is the first published account by Hicks of his time spent at Guantanamo Bay and the events leading up to his arrest.
 In August 2011 assets from the book were frozen as the Commonwealth DPP attempted to pursue Hicks through the courts to stop him profiting from the autobiography.
Hayden Schlossberg (born June 9, 1978) is an American screenwriter/director/producer from Randolph, New Jersey who became well known for co-writing "Harold & Kumar Go to White Castle", as well as co-writing, co-directing, and co-producing "Harold & Kumar Escape from Guantanamo Bay", both with Jon Hurwitz.
David Krumholtz (born May 15, 1978) is an American actor.
 He played Charlie Eppes in the CBS drama series "Numbers".
 He played Seth Goldstein in "Harold & Kumar Go to White Castle" and its two sequels, "Harold & Kumar Escape from Guantanamo Bay" and "A Very Harold & Kumar 3D Christmas".
 He is also known for his role as Bernard the Elf in "The Santa Clause" and its sequel, "The Santa Clause 2".
 Additionally, he is known for his role as Mr. Universe in the 2005 film "Serenity" and played Michael the AV geek in "10 Things I Hate About You".
 In 2016, he provided the voice for Kareem Abdul Lavash in the adult animated film "Sausage Party".

Question: Who wrote the film that was followed by "Harold & Kumar Escape from Guantanamo Bay" and "A Very Harold & Kumar 3D Christmas"?
Answer: Jon Hurwitz and Hayden Schlossberg