Question: Film Threat and Popular Mechanics, is which form of publication?

Context paragraphs:
Benjamin Chertoff: Benjamin Chertoff is a journalist, photographer and video producer.  He is most known for his work on the Popular Mechanics article .  He also created the Popular Mechanics Show, the weekly podcast of Popular Mechanics magazine.  He is currently a freelance photojournalist, writer and documentary producer.

Michael Q. Schmidt: Michael Quentin Schmidt (born April 20, 1953) is an American film and television actor and fine arts model.  According to "Film Threat", he "has become a much-in-demand presence thanks to his versatility and his willingness to take roles to wild extremes".

Parker Jeanie's Teenie: The Parker Jeanie's Teenie, or JT-1, is a single-seat, single-engine sport aircraft first built in the United States in 1967 and marketed for homebuilding.  It was featured on the cover of a Popular Mechanics magazine issue in May, 1968.  The caption on the cover read, "Build This 'Flying Volkswagen' For Less Than $600! ."  The cost of materials has increased since the article's publication but the initial popularity of Parker's Jeanie's Teenie was high.  The Teenie would be certified in the Experimental category in the US.  A pilot license is required to fly one, as it is not considered an ultralight aircraft in the United States.

Threat (film): Threat (2006) is an independent film about a straightedge "hardcore kid" and a hip hop revolutionary whose friendship is doomed by the intolerance of their respective street tribes.  It is an ensemble film of kids living in New York City in the aftermath of 9-11, each of them suffering from a sense of doom brought on by dealing with HIV, racism, sexism, class struggle, and general nihilism.  The intellectual issues are played out amid an aesthetic of raw ultraviolence that has earned director Matt Pizzolo both accolades and condemnations (such as Film Threat's rave review stating "great art should assail the status quo, and that is what Pizzolo and Nisa’s film has skillfully accomplished"  in contrast to Montreal Film Journal's scathing review saying the film "openly glorifies murderous revolt, literally telling the audience to go out and beat up random people, just because").  Unlike past urban dramas, the film does not outright condemn its characters' violent outbursts.  Although it does show harsh consequences for acts of violence, numerous critics have pointed out that it is unclear whether or not the film intends to glorify violence and/or class conflict.

Film Threat: Film Threat was an online publication and, earlier, a national magazine that focused primarily on independent film, although it also reviewed videos and DVDs of mainstream films as well as Hollywood movies in theaters.  It first appeared as a photocopied zine in 1985, created by Wayne State University students Chris Gore and André Seewood.  In 1997, "Film Threat" was converted to a solely online resource.

Piece by Piece (film): Piece By Piece is a documentary film directed by Nic Hill.  The film documents San Francisco's graffiti culture from the early 1980s to 2004.  It is narrated by the San Francisco graffiti artist Senor One, better known as Renos.  The "San Francisco Bay Guardian"<nowiki>'</nowiki>s Cheryl Eddy singled the film out as the highlight of the 2006 Hi/Lo film festival, calling it "an educational experience" and "a thoughtful document".  In a full review for that same paper, Johnny Ray Huston said it was "a thorough history that still makes time ... for abstract, lyrical flowing passages".  Huston complained that sections such as those featuring Tie One or Reminisce could make movies in themselves, and wished to see more detailing of artists' entries into the legitimate art world.  He concluded that the film and director "succeeded at a mighty task" and were interested in displaying "a deep but entertaining understanding of the city as both a historical site and a nexus for contemporary change".  Rory L. Aronsky in "Film Threat" wrote that the documentary "gets this graffiti culture completely right" while for Dennis Harvey in "Variety" it was "an excellent overview of two decades' graffiti in San Francisco".

Sam Wells (filmmaker): Sam Wells (November 4, 1950 – June 3, 2011) was an American experimental filmmaker and photographer based in Princeton, New Jersey.  He is best known for the film "Wired Angel" (1999), an avant-garde feature inspired by the life and trial of Joan of Arc.  Filmed on high-contrast black-and-white reversal film and featuring a musical score written by Academy Award-winning composer Joe Renzetti, "Wired Angel" was well received at underground film festivals in both Chicago and New York, with Film Threat magazine naming it one of the best unseen films of 2001.

Tessa Hughes-Freeland: Tessa Hughes-Freeland is a British-born experimental film maker and writer living in New York City.  Her films have screened internationally in North America, Europe and Australia and in prominent museums and galleries, including the Museum of Modern Art, the Museum of Contemporary Art, Los Angeles, the Whitney Museum of American Art, the New Museum of Contemporary Art in New York, and the KW Institute of Contemporary Art in Berlin.  She has collaborated on live multi-media projects with musicians like John Zorn and J. G. Thirlwell.  The co-founder of the New York Film Festival Downtown in 1984 and its co-director until 1990, she later served as President of the Board of Directors of the Film-Makers Co-Operative in New York City from 1998-2001.  Hughes-Freeland has published articles in numerous books, including “Naked Lens: Beat Cinema” and “No Focus: Punk Film,” and in periodicals including PAPER Magazine, "Filmmaker" magazine, GQ, the "East Village Eye", and Film Threat.

Popular Mechanics: Popular Mechanics is a classic magazine of popular science and technology.

Popular Mechanics for Kids: Popular Mechanics for Kids (sometimes abbreviated to PMK) is an educational Canadian television series based on "Popular Mechanics" magazine.  It was notable for starting the careers of Elisha Cuthbert, Jay Baruchel and Tyler Kyte.  The show's intent is to teach viewers how things work.  It was awarded the Parents Choice Award in 2003, and was nominated for the Gemini Awards.

Supporting paragraphs: Film Threat Popular Mechanics
Answer: magazine