Henry's fastball ... 103mph is not completely unhittable
Now before I get started, I realize that it is just a movie. So this may seem somewhat nitpicky. But as a guy who used to pitch and as a long time fan of the game, I wanted to get something off my chest. They should have had the radar guns read higher than 101-103 mph on Henry's fastball. While a 103 mph fastball is extremly fast, there are guys in the majors that have thrown that hard that get hit.
Even if a pitcher throwing 101-103mph managed to completely blow the ball by the first few guys in the lineup, eventually they would catch up to his fastball and get the timing down. Especially if he is never throwing any off speed pitches to try and offset the hitters. Or at the very least, the hitters would eventually get some wood on the ball.
In order to be fast enough to where hitters could not even make contact, a guy would have to be throwing way harder than 103 mph. I was always suprised by the somewhat low rating on the radar gun when Henry was being clocked because of the fact that he could make a powerful bee-line throw from the bleachers to home plate. Anyone who could do that, would definately be throwing harder than 103mph from 60 feet 6 inches.