A method of streaming a motion picture, comprises: transmitting a motion picture data containing an image signal specifying an image and a heart rate signal specifying a heart rate of a person appearing in the image; and reproducing a heart sound based on the heart rate signal in synchronization with the image reproduced with the image signal. A viewer of a motion picture is allowed to have identification with the character in the motion picture by hearing or listening to the heart sound. The viewer of the motion picture possibly enjoys more a realistic feeling through the motion picture than ever.