Dublado e Legendado no OverFlix. In the middle of Yosemite National Park towers El Capitan, a huge block of granite whose smoothest side, the Dawn Wall, is said to be the most difficult rock climb in the world. Tommy Caldwell didn’t see inhospitable terrain, but rather a puzzle almost a kilometer tall. In The Dawn Wall, we follow him and Kevin Jorgeson in their historic ascent to the summit.