Fever Pitch

This is a reconstructed conversation between plasticann and "friend."

Friend: Have you heard about that movie with Drew Barrymore and it's about the Red Sox?
plasticann: No...I don't think so.
Friend: It's based on a Nick Hornby book and it's called Fever Pitch. The book was about soccer, but the movie adapts the book for baseball. A pitch in soccer is the field, but I don't get why they called the movie Fever Pitch because the movie is about baseball.
plasticann: Well...don't they "pitch" the ball in baseball?
Friend: Why didn't I think of that? It's been really bothering me for days, but now it makes sense.
plasticann: I laugh at you. Ha ha ha. Just kidding.