Macintyre's X-Ray Film is a 1896 documentary radiography film directed by Scottish medical doctor John Macintyre. The film includes shots of X-ray picture of frog's knee joint. X-ray radiograph of adult, each picture taken in the 300th part of a second. A series of these pictures enable us to see a complete cycle of the movements of the heart. The movements of the digestive organs can also be seen, and the joints of the body, thus facilitating diagnoses of disease of the bones and joints. Shots of X-ray picture of human heart beat.