Superman the movie, Clark kicking football

original movie prop

This is one of two wooden footballs that remain from the scene of Clark being frustrated after the game when he is invited to listen to records by Lana only to see that Brad purposely knocked over all the equipment. Clark grabs a football and kicks it into the next country. 

The story behind this told to me by Jeff East at the Superman Celebration was that the first football was launched into one of those wooden silos in the back ground because the stunt team didn't know the correct pressure to use for the air pressure cannon used to launch the football. That big puff you see when Clark kicks the football is from the cannon.