I remember seeing a short B&W film in the 1950s,  showing a young boy? who is a school crossing guard, gets hit by a car.. goes to Heaven but sees that he is missed and so is urged to go back home (recover from his wounds).. There are people who are wearing masks like donkeys & pigs…Made quite an impression on me as a young girl and I have been searching for it ever since. My father was president & general manager of a TV & Radio station & would bring some films home for us tosee on our 16mm projector.. I am not sure if this was a PSA or a regular short film. It was in English.