In the 1984 movie 'The Natural' what was the name given to Roy Hobbs' bat?

Good movie. If I remember right, the bat was called Wonderboy. It also had a lightning bolt on it.

It was Wonderboy. He carved it out of the tree in his back yard that was struck down by lightning, and he also engraved a lightning bolt on it.

The Natural is a 1952 novel about baseball written by Bernard Malamud. The book follows Roy Hobbs, a baseball prodigy whose career is sidetracked when he is shot by a crazed fan. Most of the story concerns itself with his attempts to return to baseball later in life, when he plays for the fictional New York Knights with his legendary bat 'Wonderboy.'

https://en.wikipedia.org/wiki/The_Natural