The Exorcist (1973) Trailers & TV Spots

Disclaimer: this film's teaser trailer, as well as the TV spots starting at 5:01 and 8:08, contain rapid flashing images so if you get easily nauseated, or have epilepsy and are prone to seizures, feel free to skip to 1:41, then later to 5:31 and 8:39. "When a teenage girl is possessed by a mysterious entity, her mother seeks the help of two priests to save her daughter."