Terry's family rejected MLB's initial offer to buy the film. There are parts of the original NBC broadcast still existing, but they have only been shown to a small audience.
Many famous sporting events don't exist on tape or film in complete form. Super Bowls I and II are examples of this. For Larsen's perfect game, most of us will still have to settle for watching newsreel footage of Yogi Berra jumping into Don Larsen's arms after a recreation of umpire Babe Pinelli calling out pinch hitter Dale Mitchell to end the game.