Continuity mistake: Wiesler is called into the office and his boss opens the humidor to get a cigar. As Wiesler is talking you can hear Grubitz lighting a match. The next shot his left hand is nowhere near his mouth and his right is holding the cigar in his mouth and is already a bit smoked. This would be impossible as if he used his left hand it would have been seen coming down after he lit the cigar. Even if it was his right hand then how did he get it out of his hand so quickly and then hold the cigar all at the same time.
Hauptmann Gerd Wiesler: An innocent prisoner will become more angry by the hour due to the injustice suffered. He will shout and rage. A guilty prisoner becomes more calm and quiet. Or he cries. He knows he's there for a reason. The best way to establish guilt or innocence is non-stop interrogation.
Georg Dreyman: You are a great artist. I know that, and your audience knows it, too. You don't need him. You don't need him. Stay here. Don't go to him.
Christa-Maria Sieland: No? I don't need him? Don't I need this whole system? What about you? Then you don't need it either, or need it even less. But you get in bed with them, too. Why do you do it? Because they can destroy you too, despite your talent and your faith. Because they decide what we play, who is to act, and who can direct.