Nightmares in Red, White and Blue: The Evolution of the American Horror Film is a 2009 American documentary film directed by Andrew Monument, based on the 2004 book of the same name by Joseph Maddrey. The film examines the appeal of the horror film genre to audiences and how the genre has continually evolved to reflect changing societal fears in the United States during the 20th and 21st centuries.

Nightmares in Red, White and Blue features interviews with such subjects as Larry Cohen, Joe Dante, John Carpenter, Darren Lynn Bousman, Mick Garris, Tom McLoughlin, and George A. Romero, and is narrated by Lance Henriksen. It has received generally positive reviews.