However it's not just teens who are watching and re-watching this rom-com. With references to John Hughes 80s classic Sixteen Candles woven throughout, it's definitely one for women from all generations. Plus, it stars Sex And The City's John Corbett (remember Aidan Shaw?) as Lara Jean's dad.
If the title alone doesn't stir all kinds of nostalgia then the film's male protagonist, Peter Kavinsky played by baby Mark Ruffalo look alike, Noah Centineo, 22, will. In short he's the kind of boyfriend we all wished we had in high school.
Trust us, he'll win you over in a second with his catch-phrase (see below).
He gained one million Instagram followers in just one day.
Since the film's debut on August 18th, Noah has become the internet's latest crush gaining over 2.4 million Instagram followers in two weeks. But he hasn't let that get to his head. "It hasn’t really affected me yet. Whatever the numbers are, it’s just a device, you know? [Laughs.] Nothing’s really changed in my day to day," he told W Magazine.
You might recognise him from Camila Cabello's Havana film clip?
He's sort of like his character Peter in real-life...
The American-born actor revealed: "I can relate to him because he was going through some stuff with his parents, and because of that he had this outer shell and, really, inside he’s a sensitive character. I’d like to think of myself as the same."
He likes romantic comedies as much as we do.
"Oh, man. I love 13 Going on 30, I love Failure to Launch, I love How to Lose a Guy in 10 Days. I love What Happens in Vegas, You’ve Got Mail. Serendipity is one I really, really love."