Drama:
Gladiator, when he reveals himself and confronts Commodus in the arena, and utter these spine tingling words,"My name is Maximus Decimus Meridius, Commander of the Armies of the North, General of the Felix Legions, loyal servant to the true emperor, Marcus Aurelius. Father to a murdered son, husband to a murdered wife. And I will have my vengeance, in this life or the next."
Comedy:
The Pink Panther Strikes Again - scene where Clouseau is disguised as a dentist and gets himself and Dryfus high on nitrous oxide, and pulls the wrong tooth. Hillarity.
OVerall:
The Big Lebowski - Dream sequence #1
Drama