Art Marcum and Matt Holloway are an American screenwriting duo, best known for writing the scripts of Iron Man and Punisher: War Zone.In 2008, Marcum and Holloway wrote the script of Marvel Studios' superhero film Iron Man, which was directed by Jon Favreau and released on May 2, 2008, by Paramount Pictures. The duo also wrote the script for the action film Punisher: War Zone, directed by Lexi Alexander and released on December 5, 2008, by Lionsgate. They were hired by Paramount to co-write a script with John Fusco for the 2014 Teenage Mutant Ninja Turtles film, but their script was ultimately never used. In 2019, they were hired by Sony to write the script for the adventure film Uncharted, directed by Ruben Fleischer. In 2020, it was revealed that the duo had provided rewrites for two projects in the Sony Pictures Universe of Marvel Characters: The first being Morbius (2021), directed by Daniel Espinosa. The other being a film centered on Kraven the Hunter, directed by J. C. Chandor.