Robin Williams improvised scene in Good Will Hunting made the cameraman laugh so hard the camera started shaking and Matt Damon didn't even have to fake his laugh. https://t.co/WOMI1Urwag https://video-cf.twimg.com/ext_tw_video/1826056748152582144/pu/vid/avc1/1080x594/YcvE525vkKtf_h9M.mp4?tag=12