15 Things You Didn't Know About When Harry Met Sally

15. When The Royal Family Loved This Film

When Harry Met Sally has many celebrity fans to its name because it's such a classic. But amongst them, one surprising fan is the late great Princess Diana.

She attended the film’s 1989 royal premier in London, where she met the film’s two leads and sat next to Billy Crystal during the screening. According to Crystal, she loved the film and laughed hard at the infamous orgasm scene (more on that later), before whispering to him “so naughty”.

In fact, Princess Di adored the movie so much, she arranged to have a private screening of it for her friends at Buckingham Palace.

There’s no word on what Queen Elizabeth II thinks of When Harry Met Sally, and maybe that's for the best.