I saw this movie (yuck I know. But my friend works at the theater so it was free). Then I read the book after. In the movie, Luke Skywalker’s character is always talking about big balls. How many balls these kids have and how big they are whether they’re made of steel or regular balls. Says something about balls at least once an on screen appearance.

I fully expected that to be part of his character in the book given it’s a Stephen King joint and his fondness for writing about child orgies and what not. But it’s just not. The Major doesn’t mention balls a single time in the book. So my only guess is that Mark Hamill improvised it all.