Signs is a 2002 American science fiction horror thriller film written and directed by M. Night Shyamalan and produced by Shyamalan, Frank Marshall, Kathleen Kennedy and Sam Mercer. The film was produced by Blinding Edge Pictures and The Kennedy/Marshall Company. It was distributed by Buena Vista Pictures through the Touchstone Pictures label theatrically, and by Touchstone Home Entertainment in home media format. Starring Mel Gibson and Joaquin Phoenix, the story focuses on a former Episcopal priest named Graham Hess who discovers a series of crop circles in his cornfield and that the phenomenon is a result of extraterrestrial life. Signs explores the themes of faith, kinship, and extraterrestrials.

Signs premiered in theaters on August 2, 2002. The film was a financial success, grossing $408 million on a $72 million budget, becoming the seventh-highest-grossing film of 2002, and was met with positive reviews from critics, with many praising its atmosphere, cinematography, score and story, but others criticizing aspects of the script. The film was nominated for multiple awards, including those from the Online Film Critics Society and the Empire Awards. The film also won an award from the American Society of Composers, Authors and Publishers. The high definition Blu-ray Disc edition of the film featuring the director's audio commentary, the making of the film and deleted scenes was released in the United States on June 3, 2008. The original motion picture soundtrack, which was composed by James Newton Howard, was released on the opening day by the Hollywood Records label.