Other mistake: When Chris is sleeping in his yellow car during the thunderstorm, he gets hit by a flash flood. Afterwards he abandons his car and removes his licence plates. His plates are: UW4-924. A few minutes later his parents decide to visit Chris in Atlanta. We then see a shot of a white car on the freeway, which has the exact same licence plate (UW4-924).
Trivia: While certain details of the story were altered for the confines of film, the characters Jan Burres played by Catherine Keener and Ronald Franz played by Hal Holbrook were both, according to research, entirely accurate. In fact when Jon Krakauer, the author of the book with the same name, contacted both people, they remembered Chris well and expressed great loss when learning of his death.
Trivia: The bus shown in the film where Chris makes his camp in Alaska, and eventually dies, still exists. It is difficult to say if it's touching or morbid, but at the bus a sort of shrine has been erected in his honor. Travelers from all over the world have trekked there and in notebooks left inside the bus, record where they're from, their trips there and their feelings on Chris and his life.
Trivia: When Chirs gets to Slab City, which actually exists by the way (I was there a year ago, and it's populated by some wonderfully kind people, I might add), he climbs Salvation Mountain. He is shown around by a sweet old man who explains the mountain to him. That is the actual builder of Salvation Mountain, Leonard Knight.
Christopher McCandless: Rather than love, than money, than faith, than fame, than fairness... Give me truth.
Christopher McCandless: If we admit that human life can be ruled by reason, then all possibility of life is destroyed.
Question: Alexander shoots the moose with a rather rapid fire action: it sounds as if the rifle is semi-automatic. What was the true story, and why did Alexander specifically ask for a a cal .22 rifle? Was it because he planned to hunt small game, and knew that a heavier rifle/calibre would be unsuitable? To plan for moose hunting, he would choose something like cal.308.