Over the course of their careers, Chris Sharma and Adam Ondra have both been able to lay claim to the title of world's strongest sport climber. But watch this engaging clip from Sender Films' and Big UP Productions' La Dura Dura,聽 and you can see that's about where the similarities end.
Where Sharma approaches the rock with patience, often working projects for months or years at a time, Ondra climbs aggresively, finishes off his projects fast, and shrieks like a pissed-off toddler with a megaphone when he falls (skip to 1:47 to see one of his legendary wobblers).
La Dura Dura is one of the films featured in this year's , premiering on September 13.
鈥擜dam Roy