Scott Kosar
Scott Kosar is an American screenwriter known for horror films like The Machinist, the 2003 remake of The Texas Chain Saw Massacre, and the 2005 remake of The Amityville Horror. He won UCLA’s Distinguished Achievement in Screenwriting Award in 2006 and served as the Hunter/Zakin screenwriting chair at UCLA in 2009–2010. He wrote The Machinist while in UCLA’s graduate screenwriting program.
The Machinist drew attention for Christian Bale’s extreme weight loss, and that fame helped Kosar land the job of writing The Texas Chain Saw Massacre remake, directed by Marcus Nispel. The film opened in October 2003 in over 3,000 theaters and went on to earn about $80 million in the U.S. and around $107 million worldwide, with a budget of about $9.5 million, making it the highest-grossing film in the franchise.
Kosar later worked on The Amityville Horror remake for Bay’s company, directed by Andrew Douglas. It earned about $65 million in the U.S. and $42.8 million overseas, for a worldwide total around $108 million. Some critics noted the remake’s minimal CGI helped preserve a retro, cheesy feel.
In 2010 he began rewriting Vlad, a Dracula prequel for Summit Entertainment, and he wrote the remake of The Crazies, directed by Breck Eisner. Kosar has also written and served as supervising producer on Bates Motel, a Psycho prequel, and on the Netflix horror series The Haunting of Hill House.
This page was last edited on 2 February 2026, at 17:41 (CET).