The Looney Tunes search for a man’s missing father and the mythical Blue Monkey diamond. From the 2003 film Looney Tunes: Back in Action, this is a filming slate used during the production of the film making process. A Slate or Clapperboard is a device used in film making and video production to assist in synchronizing of picture and sound, and to designate and mark the various scenes and takes as they are filmed and audio-recorded.