Continuity: Hemlock loses his ice axe on the mountain, but it is visible strapped to his pack as he hands in front of the railroad tunnel window later.
Continuity: When urged to cut his line, Hemlock carefully removes his gloves, but they are back on later.
Revealing mistakes: When Hemlock meets Dragon, Dragon's right contact lens has moved to the bottom right of his eye in one shot.
Audio/visual unsynchronized: When driving on sand/dirt roads out in the desert, the tires screech as if driven on asphalt.
Revealing mistakes: On the practice/training climb on the rock column in Monument Valley, Hemlock is shown climbing 'up' and using existing anchor points, yet it is claimed that no one has climbed the formation before.
Crew or equipment visible: During the scene where Hemlock (Clint Eastwood) and Bowmen go on a training climb, Hemlock is 'leading' but there is a rope clearly visible above him and attached to his body.
Miscellaneous: When Hemlock shows Jemima the photo of Miles Mellough, Henri Bach and himself, two of the three have the flashes on their berets upside-down.
Revealing mistakes: (At 1:44) When Montaigne gets hit in the head and goes dead weight, his taught rope suddenly gets slack in Hemlock's grip.