Dorworth was also a member of the Fun Hogs expedition (together with Yvon Chouinard, Chris Jones, Douglas Tompkins, and Lito Tejada-Flores), who made the third ascent of Mount Fitz Roy in Patagonia in 1968. Footage of the expedition was made into an adventure film, Mountain of Storms, which also includes footage of Dorworth's earlier speed skiing record (set at Portillo, Chile, some time before the expedition) and brief remarks by him about this achievement.