Those that would be required 'Repeat Viewing' could number 100, but I'll stay with the theme of a round ten...
1) Casablanca - "Might as well be frank, monsieur. It would take a miracle to get you out of Casablanca, and the Germans have outlawed miracles."
2) The Wizard of Oz - "Who would have thought a little brat like you could destroy such beautiful wickedness!"
3) The Third Man - "Death's at the bottom of everything, Martins. Leave death to the professionals.."
4) My Life As A Dog - "Ingemar, be a good boy."
5) To Be or Not To Be <1942> - "Heil Myself!"
6) Hannah and Her Sisters - "And Nietzsche, with his theory of eternal recurrence... Great. That means I'll have to sit through the Ice Capades again."
7) Brazil - "Care for a little necrophelia?"
Citizen Kane - "that's the second sentence you've started with 'I'."
9) The Apartment - "that's the way it crumbles, cookie-wise."
10) Rear Window - "Nobody ever invented a polite word for a killing yet."