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Continuity mistake: At the beginning of the "Failure Is Not an Option" scene, Gene writes "45 hrs" on the chalkboard. In the close-up as he writes it, the front of the 4 is curved into the spine, and the 5 is written with a flat top and flat back leading into the curve underneath. Then, Gene puts a period after "hrs." When the shot cuts wide, the 5 looks more like an S and the top of the five is curled back under. The spine of the 4 has become much longer as well. When Gene walks back to the board at the end of the scene, the front of the 4 is more angular than curved, and the 5 still looks like an S but the curl under the top line is gone. And, once the shot changes away from Gene writing it, the period after "hrs" disappears for the rest of the scene. (01:15:50 - 01:17:45)

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Continuity mistake: When Lovell and Haise discuss their families and Haise's illness, Lovell grabs a picture of Mary from the air and comments on, while Haise is seen putting a green letter back into its envelope. It cuts to show a close-up of Haise's hands pulling the letter and the photo from the envelope as if he just opened it (which would have happened moments earlier).

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Continuity mistake: Just before Gene Kranz draws a circle on the chalkboard to indicate the Earth, the erased circles from previous takes can be seen. He then draws a hasty, sloppy unclosed circle, but subsequent shots a few seconds later show a neater, closed circle. (01:07:30)

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