I'll be back
Schwarzenegger first used the line in "The Terminator." In the scene, his character, the Terminator, a cyborg assassin, is refused entry to the police station where his targets, Sarah Connor and Kyle Reese, are being detained. He surveys the counter, then tells the police desk sergeant: "I'll be back." Moments later, he drives a car into the station, destroying the counter, and massacres the staff.