Factual error: During the gun battle, Gary Cooper runs behind a building that has an air-conditioner or swamp cooler installed in a second-floor window. (01:17:30)
Factual error: Since this film serial was made in the early 1950s there are many scientific inaccuracies about the moon in it, not the least of which is that, according to the story, the moon has exactly the same gravitational pull as Earth.
Factual error: The chairlift for the ski resort on Mount Hood is visible in the scene that pans to the right just before James Stewart is abandoned on the mountain. This ski resort was not around when the film is set.
Factual error: Players didn't wear numbers on uniforms at that time.
Factual error: In Danny Kaye's song about "The Emperor's New Clothes" he persistently and repeatedly uses the words "the king is in the altogether." Hans Christian Andersen lived from 1805 to 1875, but the expression "in the altogether", meaning naked, was invented and popularised by George Du Maurier in his novel "Trilby" which was not published until 1894.
Factual error: When Sterling Hayden reminisces about his first tour, he is watching F4U Corsairs landing aboard in 1944. However, the planes are marked in the post-war red bar insignia.