"The Exorcist" is a horror film released in 1973, directed by William Friedkin and based on the novel by William Peter Blatty. The story follows a young girl named Regan, who becomes possessed by a demonic entity. Her mother, Chris, seeks help from two priests, Father Karras and Father Merrin, to perform an exorcism in an attempt to save her daughter. The film is known for its intense and disturbing imagery, as well as its exploration of themes such as faith, good versus evil, and the nature of possession. "The Exorcist" received critical acclaim and is often regarded as one of the greatest horror films of all time, influencing many subsequent works in the genre.