Rollercoaster (1977 film)

Rollercoaster is a 1977 disastersuspense film starring George Segal, Richard Widmark, Henry Fonda and Timothy Bottoms, and directed by James Goldstone. It was one of the few films to be shown in Sensurround, which caused audience seats to vibrate during certain periods during the thrill scenes on the rides.

Meanwhile, the bomber flies to Pittsburgh where he sets fire to a dark ride at another park. There are no injuries. When the investigation of the incident fails to produce a lead, Calder travels to Chicago where park executives are meeting. The meeting room has been bugged by the bomber, disguised as a bellboy. Calder demands to be let into the meeting. One of the executives plays a tape sent by the Young Man, wherein he demandsmillion to stop his bombing campaign.When Calder returns home he receives a call from the Young Man, who knows that Calder will be selected to deliver the money to the bomber in Virginia. FBI Agent Hoyt Richard Widmark arrives, and confirms that the extortion money is to be delivered by Calder. Calder goes to Kings Dominion under protest. He is told to wait at a telephone in the park. He is called by the bomber, who is secretly watching him from the Eiffel Tower. He tells Calder that there is a bomb in the park, and he sends a twoway radio by a courier so that he can remain in touch with Calder at all times. He orders Calder to go on various rides in the park including the Rebel Yell wooden racing coaster. ........

Source: Wikipedia