Elliot: You must be dead, because I don't know how to feel. I can't feel anything anymore.
E.T. the Extra-TerrestrialJack Lucas: [on the radio] I told you about these people. They're evil, Edwin. They must be stopped.
The Fisher KingBoss Tweed: The appearance of law must be upheld, especially while it's being broken.
Gangs of New YorkMaj. Cotton: That must be the first 50 in the history of village cricket.
Lagaan: Once Upon a Time in IndiaDenethor: Why do the fools fly? Better to die sooner than late. For die we must.
The Lord of the Rings: The Return of the KingKnight 1: ...You must cut down the mightiest tree in the forest... WITH... A HERRING!
Monty Python and the Holy Grail