One chapter is labeled 'Funambulism', which means tightrope walking.
The establishing shot '100 Miles Outside Of Palm City' is actually a stock photo of a solar electric plant in the Atacama Desert of Chile. This plateau on the western side of the Andes Mountains is ideal for solar power plants because the extremely arid climate rarely allows for any clouds.
One of the hardest parts of learning tightrope is conditioning your feet to take your full weight on a 1/2 inch strip of sole; note that Vince is wearing soft sole slippers when he gets on the steel cable. It takes months to condition your feet. Side point: 250 feet of such cable weighs over 160 pounds, a bit much for a crossbow.