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4-D film is a marketing term that describes an entertainment presentation system combining a 3-D film with physical effects in the theatre, which occur in synchronization with the film. Because the physical effects are expensive to set up, 4-D films are usually presented only at special venues such as theme parks and amusement parks. However, in Korea, some movie theatres also have the ability to present a 4-D film and the film Avatar was one of 10 films that have received the treatment, starting with Journey to the Center of the Earth.

Some of the effects simulated in 4-D films include rain, wind, strobe lights, and vibration. The use of water sprays and air jets is also common. A 4-D film is not shown in a motion simulator, although some seats in 4-D venues vibrate or may move a few inches during the presentation.

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14y ago

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