fast motion (accelerated motion)

Fast motion, or accelerated motion, refers to a camera device or effect to compress reality and highlight a scene or cause a dramatic effect, created by filming a scene with the film running at a rate less than the normal 24 frames per second and then projecting it back at standard speed, thereby creating the effect of moving faster than normal. Generally used for comic effect. Fast motion is in contrast to "slow-motion" or "time-compression."