Continuity mistake: When Joan first meets with her captains in Orleans, they argue. She walks away and La Hire calls her "a helluva woman". As she walks away, you can see him looking at her. Immediately, she turns back, and he is now looking at the other captains as she walks up to him and belts him. He must have turned his head very quickly, too quickly to be caught on film.
Continuity mistake: When young Joan is lying in the field and finds the sword, she points the sword towards the sky, and the side handles are vertical with her body. Then in the aerial shot going toward her, this time and throughout the rest of the small part, the side handles are horizontal with her body.
Continuity mistake: After the 2nd battle (when Joan got an arrow in the chest) she wakes up her soldiers the next morning and uses the tower to break down the English bridge. At the bottom of the bridge when its falling (inside the fort), no one is near the bridge when it's falling except the guy who bad-mouthed Joan earlier that morning. Then in another shot there are at least eight guys getting crushed by the bridge.
Joan of Arc: I did not come here to perform tricks. You're all much cleverer than I am. Me, I don't know A from B. But this much I do know. That while the people of France lie bleeding, you sit around in your fine clothes trying to deceive me, when you're only deceiving yourselves. You say you are men of God. but you do not see His hand in having guided me through 500 leagues of enemy country to bring you His help. Is that not proof enough? Do you still need more signs?