Factual error: When Kharis is being examined by Petrie, he says that the lines on his face were caused by him being buried alive. In the next sentence he goes on to say that Kharis shows the best example of the embalmer's art that he has ever seen. Strange - if you're planning on burying someone alive you wouldn't embalm them first - that process would kill them!
Revealing mistake: During Fritz's fight with the giant anaconda in the swamp, James MacArthur's stunt double becomes apparent by virtue of a bald spot showing on the back of his head. (01:10:30)
Continuity mistake: Chapter 2: Freezing Torture. When Dale falls from the mountain, her pick stays on the top but she still has it in her hands in the next shot.
Continuity mistake: As the crew of an English ship are crouched down on deck prior to a battle with a Spanish galleon, one of them stands up and moves to the other side. As he does so part of the background projection (ocean and sky) is shown on his back.
Factual error: The movie "Santa Fe Trail" (1940) starring Errol Flynn, Ronald Reagan and Raymond Massey, is the story of John Brown's raid on Harper's Ferry in 1859. The president is shown to be Abraham Lincoln, who wasn't inaugurated until February of 1861.
Continuity mistake: In the climactic sword fight between Power and Rathbone, the Captain hand Diego a sword and they immediately start a classic duel. At end, Diego pulls off a dueling glove that he had never put on.