Anachronisms: At the end of the film, Thomas More picks the blossom of a tree called Aesculus hippocastanum L., a tree that appeared in Europe only in the 17th century and was introduced by the Turks.
Continuity: When King Henry visits Thomas More's house and steps off the boat, he steps into mud and makes light of it. When his retinue follow, it is seen their feet and leggings are already muddy from a previous take.
Audio/visual unsynchronized: At the beginning of the film, when Cardinal Wolsey is writing a letter to Thomas More, the sound of the quill marking the paper continues for about a second after Wolsey has stopped writing.
Anachronisms: When Sir Thomas More enters the room to first answer charges before Secretary Cromwell, a chandelier with electric lights is visible in the background.
Continuity: At the beginning of the scene when Cardinal Wolsey is writing the letter to Thomas More, he stops writing and throws the pen on the table to his right but when the angle turns to Thomas Cromwell to fold the letter, the pen cannot be seen on the desk.
Continuity: During the trial of More, the guards at the back of the room change the direction they're facing several times.
Anachronisms: In the scene where King Henry first visits Thomas More's house, we see a yellow Labrador Retriever running to the house. However, the dog with the specific physical characteristics that we associate Labradors with today (and that was shown), wasn't bred yet.