 Weir avoided writing Watney as lonely and depressed in his novel. While Watney's humor is preserved in the film, Scott also depicted the character's isolation in the vast, dusty Martian landscape. Todd McCarthy of The Hollywood Reporter wrote: "The scenes back on Earth provide a hectic, densely populated counterweight to the Martian aridity, which is magnificently represented by exteriors shot in the vicinity of Wadi Rum in Jordan." Damon said he and Scott were inspired by the 2003 documentary film Touching the Void, which featured trapped mountain climbers. Scott also expected to film Watney as a Robinson Crusoe, a character in full isolation, but learned to film Watney differently since the character would be self-monitoring his behavior under the watch of various mission cameras.
