Revealing mistake: When Natalie Portman's character is about to be executed, if you look at the wall behind the executioner, you can see a modern metal drainpipe.
Audio problem: In the scene where Mary is leaving court and you see Henry riding a horse with Anne on the back, you can hear a siren go off twice. (01:05:30 - 01:06:10)
Continuity mistake: The morning after her wedding night, we see Mary walking with Anne telling her about the wedding night, notice Mary's braids in her hair, one braid is in a circle, yet in the next scene where Mary and Anne are folding a blanket, her braid is now down in one long braid. (00:12:20 - 00:15:30)
Continuity mistake: When George comes in to get Anne before going into Mary who is getting ready for her wedding, Anne's headress changes, at first she is seen wearing a more decorative one and as her and George come around the corner and head to Mary's room her headress is completely different. (00:12:15 - 01:12:15)
Audio problem: When Lady Elizabeth complains about the king coming to visit, Sir Thomas says, "That's easy for you to say you've had position and wealth all your life," and she replies, "Until I married you Thomas." When the camera faces Sir Thomas we hear Lady Elizabeth say, "And I was happy to give it up for love," but her lips do not move while saying this.
Answer: Mary was married twice. Her first husband, William Carey, died in 1528. She secretly married William Stafford, a commoner, in 1534. Her family disapproved of the match, and the couple lived out their lives in the country, away from the royal court.
raywest