I'll be back

Three of the seventeen words Arnold Schwarzenegger utters in the sci-fi classic 'The Terminator'. Said in a deep and emotionless voice (in an Austrian accent) to a police officer, before the menacing Robot returns and ploughs a car into the police station, thus gaining access to the area he was forbidden to enter. Voted to be the greatest catchphrase of all time by movie critics, and also said in the sequels to the movie.