Audio problem: During the wild boar hunt, they are interrupted by Aleander who says, "Prince Frederick of Saxony. He refuses to surrender Luther to you, Your Holiness," but nothing matches his lip movements. He utters a couple of syllables, at most, out of sync with the two full sentences heard in the movie. (English DVD version). (01:03:15)Macalou
Other mistake: When Leo X is hunting a wild pig, a poem is recited which mentions a boar (at least in the german version). But while the pig is running you can see it is a sow (from its longish nose). After the pig is hit, you can even see the teats. In the next shot the sow is supposed to look like a boar: It now has the characteristic big teeth of a boar.
Continuity mistake: When Luther arrives at the monastery for his questioning, he arrives at night, and it is raining very hard. When he is ushered into the room with his mentor, Luther is still wet from the rain, but it is sunny outside the window.
Martin Luther: Unless I am convinced by Scripture and by plain reason and not by Popes and councils who have so often contradicted themselves, my conscience is captive to the word of God. To go against conscience is neither right nor safe. I cannot and I will not recant. Here I stand. I can do no other. God help me.
Martin Luther: So when the devil throws your sins in your face and declares that you deserve death and hell, tell him this: I admit that I deserve death and hell, what of it? For I know one who suffered and made satisfaction in my behalf. His name is Jesus Christ, son of God, and where He is, there I shall be also.
Martin Luther: That day when you sent me out so boldly to change the world, did you really think there wouldn't be a cost?