: Visitors pay $1,000 a day to interact with lifelike androids designed to fulfill any desire, from romantic encounters to high-stakes duels.

: The park's technicians lose control of the system. During a duel that was supposed to be a safe amusement, the Gunslinger android (played by Yul Brynner) shoots and kills John Blane.

: A "computer virus" or malfunction begins to spread among the androids, causing them to disregard their safety protocols.

: Peter Martin (Richard Benjamin), a first-timer, and his friend John Blane (James Brolin) travel to Westworld to enjoy the Wild West lifestyle.

: The film spawned a sequel, Futureworld (1976), a short-lived TV series Beyond Westworld (1980), and the acclaimed HBO series Westworld (2016–2022).