Audio problem: When the band is marching with the Massingale rally one can hear flutes and many band instruments, but the band consists of only a few brass instruments.
Continuity mistake: When Oracle Jones is first sought out by the miners he drinks whiskey from a glass. As his visions grow he reaches for the whole bottle, and grabs the top to remove the cork; but the cork has already been removed.
Continuity mistake: When the Colonel is taking his bath in his quarters, the ash on his cigar changes length while talking to Lee Remick.
Audio problem: At the beginning when the narrator is describing the Indians spreading the word about the wagon train he describes the Indians relaying messages via a painted stone, but the Indians are shown using a painted animal hide.