30 years later and we'll still have what she's having.

When Harry Met Sally, one of the most beloved romantic comedy of all-time, debuted 30 years ago on July 21, 1989, asking audiences the age-old question: can men and women ever just be friends? 

The iconic film, directed by Rob Reiner and written by the late Nora Ephron, marked Billy Crystal's surprising transition from comedy circuit standout into a Hollywood leading man and marked the start of Meg Ryan's reign as America's Sweetheart and one of the ultimate rom-com leading ladies. But neither star was the first (or even second) choice for their now career-making roles. 

A surprise hit that no one saw coming—it was made for just $16 million and went on to earn over $90 million at the box office—so many scenes and lines from When Harry Met Sally have withstood the test of time, becoming some of the most memorable moments in the history of film.

 

When Harry Met Sally

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"Baby fish mouth!" ended up sweeping the nation, and "on the side" became a universal punchline. And, of course, who can forget Ryan's infamous Katz's Deli scene in which she shocked America by showing just how easy it is for women fake an orgasm. The movie went on to redefine the romantic comedy, challenging the usual formula of completely turning the genre on its head. 

So which other stars were up for the roles of Harry and Sally? And who actually met their future spouse while filming the classic movie? And how did that fake orgasm scene really come to be?

Here are 30 secrets you might not know about When Harry Met Sally, as revealed by the stars and in Erin Carlson's I'll Have What She's Having: How Nora Ephron's Three Iconic Films Saved The Romantic Comedy...

When Harry Met Sally

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When Harry Met Sally

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When Harry Met Sally

Castle Rock/Nelson/Columbia/Kobal/Shutterstock

Nora Ephron

AP Photo/Charles Sykes

When Harry Met Sally

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When Harry Met Sally

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When Harry Met Sally

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When Harry Met Sally

Moviestore Collection/Shutterstock

When Harry Met Sally

Moviestore Collection/Shutterstock

When Harry Met Sally

Andy Schwartz/Castle Rock/Nelson/Columbia/Kobal/Shutterstock

When Harry Met Sally - Princess Diana

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Jack Quaid

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When Harry Met Sally is available on Amazon Prime and iTunes.

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