Question: Craig Serling and Jeff Celentano, are of which nationality?

full_context: Document 1: Nunzio DeFilippis: Nunzio DeFilippis is an American writer of comic books and television. He writes with his wife, Christina Weir, whom he met while they were both students at Vassar College. The two have written for two seasons on HBO's "Arli$$", and have sold story ideas to the Disney Channel's "Kim Possible". In comics, they have written several graphic novels and miniseries for independent publisher Oni Press, including "Skinwalker, Three Strikes, Maria's Wedding, The Tomb, Once In A Blue Moon" the Amy Devlin Mysteries, Frenemy Of The State (written with Rashida Jones), and Bad Medicine. Their work at Oni led to work at Marvel Comics, relaunching the teen mutant book "New Mutants". This book was renamed "". Their run on these books spanned three years and created almost two dozen new super-powered mutant characters for Marvel's X-Men franchise, including Surge, Hellion, Wind Dancer, Prodigy, Wallflower, Elixir, Tag, Rockslide, Mercury, Anole, and Wither. They have also written for DC Comics, with stories appearing in "Wonder Woman, Adventures of Superman" and "Batman Confidential" and Dark Horse with "Dragon Age: Knight Errant." The duo also work in the expanding field of Japanese manga, providing English adaptations for the Del Rey titles "Guru-Guru Pon-Chan, Sugar Sugar Rune" and "Kagetora". They also write original English language manga for Seven Seas Entertainment, writing one of the company's launch titles, "Amazing Agent Luna" and the pirate manga, "Destiny's Hand". DeFilippis also wrote, without his wife, an issue of DC Comics' "Detective Comics". He taught comic writing at UCLA Extension before teaching screenwriting and comic book writing at the Los Angeles branch of the New York Film Academy, where he is now Chair of the Screenwriting Department and Dean of Faculty.
Document 2: Kelly Fremon Craig: Kelly Fremon Craig is an American screenwriter, producer, and film director. She is known for directing, writing, and co-producing the 2016 coming-of-age comedy-drama "The Edge of Seventeen."
Document 3: Adriano Celentano: Adriano Celentano (] ; born 6 January 1938) is an Italian singer, composer, producer, comedian, actor, film director and TV host.
Document 4: Craig Schlattman: Craig Schlattman is an Award winning American director, writer, producer, and cinematographer, best known for his Independent features, "At Ground Zero" starring Thomas Jane (credited as Tom Elliott), and "The Seller" starring Brian Brophy.
Document 5: John Craig (musician): John Craig is an American indie pop artist based in Portland, Oregon. John's solo project "John Craig & The Weekend" was formed in Portland in 2009. Craig gained notoriety in the Portland music scene for his 2009 single "Ticking" which was featured in the motion picture Tucker & Dale vs. Evil (2010 Sundance Film Festival Selection) Sundance Film Festival) along with "Trouble." The film also screened at the 2010 South by Southwest Music & Film Festival (SXSW). John's debut "Umlaut" EP has garnered industry buzz thanks in part to reviews by the Willamette Week, Rob Cullivan of the Portland Tribune, and Andy Valentine of the Eugene Weekly. "Ticking" has also been prominently featured on Portland's 94.7 KNRK and 101.9 KINK.
Document 6: Jeff Klinger: Jeff Klinger is an American comedian who lives in Los Angeles. Born on February 7 in Brooklyn, NY, he attended school in Salt Lake City. After moving to Chicago Jeff wrote, produced and directed several short films including Thanks Tony! The 7-minute-long satire about the quest for self-esteem went straight to the film festival circuit. Thanks Tony! premiered at the Chicago Comedy Shorts Film Festival.
Document 7: Jam (film): Jam (or Jam: When Lives Collide) is a 2006 drama film directed by Craig E. Serling. Written by Serling and Nicole Lonner, the film was executive produced by Dianne Burnett for Burnett Entertainment in association with Thanksgiving Films. As Serling's first feature length project, "Jam" is based upon a short film by the same name that Serling shot in 2004. Starring Elizabeth Bogush, Dan Byrd, Julie Claire, and David DeLuise, "Jam" premiered at the Vail Film Festival on April 1, 2006, aired on television on the Starz! TV channel, and was released on DVD on July 3, 2007, by the Starz! distribution branch of Anchor Bay Entertainment.
Document 8: Jeff Celentano: Jeff Celentano (born May 24, 1960), also credited as Jeff Weston, is an American actor, screenwriter, and director. As a character actor, Celentano has starred in such films as "", "Puppet Master II", and "Demonic Toys". In 1994, he turned to directing with his first short film, "Dickwad". He also directed "Under the Hula Moon", "Gunshy", and most recently "Moscow Heat". Celentano is an acting teacher and is the Executive Director of Drama at The Performer's Academy in Laguna Woods, California. Celentano was born and raised in Pemberton, New Jersey. He has been married to the actress Musetta Vander since 1988.
Document 9: Cecil B. Demented: Cecil B. Demented is a 2000 American black comedy film written and directed by John Waters. The film stars Melanie Griffith as a snobby A-list Hollywood actress who is kidnapped by a band of terrorist filmmakers; they force her to star in their underground film. Stephen Dorff stars as the eponymous character and leader of the group, with Alicia Witt, Adrian Grenier, Michael Shannon, and Maggie Gyllenhaal co-starring as the rest of his gang of filmmakers, each of whom bear tattoos of various independent directors' names, including Otto Preminger, Kenneth Anger, Sam Peckinpah, David Lynch, Herschell Gordon Lewis, Spike Lee, Rainer Werner Fassbinder, Pedro Almodóvar, and Andy Warhol.
Document 10: John A. Russo: John A. Russo (born February 2, 1939), sometimes credited as Jack Russo or John Russo, is an American screenwriter and film director most commonly associated with the 1968 horror classic film "Night of the Living Dead". As a screenwriter, his credits include "Night of the Living Dead", "The Majorettes", "Midnight", and "Santa Claws". The latter two, he also directed. He has performed small roles as an actor, most notably the first ghoul who is stabbed in the head in "Night of the Living Dead", as well as cameos in "There's Always Vanilla" and "House of Frankenstein 1997". John Russo is also the founder and one of the co-mentors along with Russell Streiner of the John Russo Movie Making Program at DuBois Business College in DuBois, Pennsylvania. Movie Emporium Inc. will released Russo's CD John Russo's Movie Music, his CD is filled with Songs from his films.
Document 11: Marc Smerling: Marc Smerling is an American film producer, screenwriter and cinematographer. He was nominated for an Oscar for "Capturing the Friedmans" in 2003, and co-wrote and produced "The Jinx", a six-part HBO documentary on suspected murderer Robert Durst.
Document 12: Craig Serling: Craig Serling is an American film director, film producer, screenwriter, and television editor known for multiple Primetime Emmy nominations for 'Outstanding Picture Editing for Non-Fiction Programming' and for his 2006 directorial debut feature film "Jam".
Document 13: Jeff Tremaine: Jeffery James Tremaine (born September 4, 1966) is an American film director, film producer, television director, and television producer. He is most closely associated with the "Jackass" franchise, having been involved since the inception of the first TV show.
Document 14: Craig Alpert: Craig Alpert is an American film editor. Alpert began his career as an assistant editor at Pixar, where he worked on films such as "Toy Story 2". He then worked as an assistant editor on "The Matrix Reloaded", "Hulk", "Meet the Fockers", and as an additional editor on "The 40 Year Old Virgin", and "". Alpert has since gone on to edit several high-profile comedy films.
Document 15: Jeff Dawn: Jeff Dawn is an American makeup artist who is known for working with Arnold Schwarzenegger, which he has done makeup on 19 of his films.
ground_truth: American