good documentary on the pitch. looks into the greatest fastball pitchers in history and what they probably threw based upon measurements at the time and modern math. the radar gun, for example, takes speed measurements 50′ from the plate. but in nolan ryan’s day it took the measurements at the plate. the end of the film summarizes the top 5 pitchers of all-time (in terms of speed). pretty cool stuff all around. if you like baseball at all then it’s worth checking out.