John Lennon making silly faces.
William Shatner, DeForest Kelley and Nichelle Nichols goofing around on the set of Star Trek: The Original Series.
Filmed by Billy Blackburn
A young Prince Harry sticking his tongue out to the paparazzi as he arrives for a school nativity play with his mother Princess Diana.
Michael Jackson joking with director John Landis on the set of the music video for Black and White.
Harrison Ford and Steven Spielberg having a little dance on the set of Indiana Jones and the Last Crusade.
Maurice Evans and Kim Hunter having a break on the set of Planet of the Apes.
Filmed by Roddy McDowall
Paul McCartney goofing around with a glass eye at Madame Tussauds.
Peter Mayhew as Chewbacca getting his hair combed.
Robin Shelby as Slimer rehearsing a scene for Ghostbusters II.