Rob Reiner was such a prolific director, his filmography is stacked with so many classics— but it’s probably safe to say 1989’s ‘When Harry Met Sally…' is one of his most memorable. At the rom-com's 30th Anniversary Screening, Reiner shared the story behind that one line we all know and still quote. | Entertainment Tonight

Rob Reiner, the award-winning director behind "The Princess Bride," "When Harry Met Sally," "A Few Good Men" and more, helped shape cinema with stories full of heart and humor. David Muir looks back at Reiner's life and the lasting legacy he leaves behind. https://abcnews.link/kHoK73k | ABC News