Darkness is a 2002 supernatural horror film directed by Jaume Balagueró and starring Anna Paquin, Lena Olin, Iain Glen, Giancarlo Giannini and Fele Martínez. The film was produced by Julio Fernández and Brian Yuzna. The film's plot follows an American family who move into a house in the Spanish countryside, where six children disappeared during an occult ritual forty years before; the teenage daughter and young son of the family are subjected to increasing disturbances in the house.

The film premiered in Spain on October 3, 2002, and was released in theaters across the country eight days later on October 11. It was sold to Miramax Films for American distribution in 2003, but ended up being put on hiatus for over a year; it was eventually released in United States theaters in an edited, PG-13-rated cut on December 25, 2004. The film was widely panned by critics, but was a commercial success, earning $34.4 million worldwide on a budget of $10.6 million.