Bugs Bunny Specials #6 (1943-1944 Season): The Old Grey Hare (1944)
Failed hunter Elmer Fudd laments that he's never able to catch the rabbit (Bugs Bunny); just then a bolt of lightning strikes, and the voice of God takes him through a flash-forward to the year 2000. Elmer and Bugs, now both elderly, look back to when they first met as babies.