Klute was an acclaimed 1971 thriller directed by Alan Pakula in which Jane Fonda won her first Academy Award. It’s also notable for featuring an early uncredited, blink-and-you’ll-miss-it eight-second appearance from Sylvester Stallone as a disco dancing extra. Even though Stallone’s a long way from the camera, you can still make him out as the guy dancing in the far background in front of the organ. In case you have trouble spotting him, the following clip showcases Stallone’s appearance in slow motion and zooms in on him.