The Old Grey Hare(1944)
Elmer wonders if he'll ever catch the rabbit; the voice of God takes him through a flash-forward to the year 2000. Elmer is equipped with a rocket-launcher rifle, but he's no smarter. He shoots Bugs, who shows him a photo album with baby pictures. We see a sequence of Bugs and Elmer as babies. Elderly Bugs digs his own grave and tricks Elmer into getting in.