Thanks for posting. Yes, I did see the movie. If it interests you, the book Gironimo by Tim Moore chronicles his retracing of the 1914 Giro which had 81 starters and 8 people who finished.
An interesting exercise but the roads back in the day were largely unpaved. Especially pretty much every mountain pass. 4000-6000 meters of climbing on rough gravel is not the same as a paved roads. The descents are even worse.