"Love means never having to say you're sorry."
One of the most parodied movie lines in cinema â even Ryan OâNeal himself poked fun at it in Peter Bogdanovich's screwball comedy What's Up, Doc?. When Barbra Streisand quotes it, he retorts, "That's the dumbest thing I have ever heard."
"If you let my daughter go now, that'll be the end of it. I will not look for you, I will not pursue you. But if you don't, I will look for you, I will find you, and I will kill you."
True to his word, Liam Neeson kills 35 men in 93 minutes in the first film, scores more in the second and third, and who knows how many in the planned TV prequel.
"You make me want to be a better man."
Though Jack Nicholson worried that his character was so unlikeable people would flee theaters, he ended up winning an Oscar for it, along with co-star Helen Hunt.
"I'm walking here! I'm walking here!"
Dustin Hoffmanâs line was ad-libbed, and the scene was shot guerilla style because they didnât have enough money to shut down a New York street. The cab "almost hit us," Hoffman once recalled. "I guess the brain works so quickly, I said, in a split of a second, 'Donât go out of character âŚ' So I said, 'I'm walking here.' Director John Schlesinger started laughing. He clapped his hands and said, 'We must have that, we must have that,' and redid it two or three times, because he loved it."