Michael J. Fox reveals how Princess Diana made the 'Back to the Future' premiere a 'nightmare' for him

Michael J. Fox was on Wednesday’s The Tonight Show Starring Jimmy Fallon to promote his new book, No Time Like the Future: An Optimist Considers Mortality. While discussing the book, he recounted the world premiere of Back to the Future, which he says was significantly impacted by one very notable audience member.

Diana, Princess of Wales, not only attended the blockbuster event in London, she also sat right next to the actor during the screening.

“She was sitting next to me,” recalled Fox. “The lights go down and the movie starts and I realize I am one fake yawn and an arm stretch away from being on a date with her, which is hilarious.”

While sitting next to the princess was exhilarating, it wasn’t without its drawbacks. In fact, she kind of ruined the entire movie watching experience for Fox.

“The movie started and also I had to go pee,” recalled Fox. “So for the rest of the movie, I'm sitting there, like, dying. I can't say anything to her and I can't walk away from her because I can't turn my back on her. So it was just agony it could have been the greatest night of my life but it was just a nightmare. A pee-holding nightmare.”

The Tonight Show Starring Jimmy Fallon airs weeknights at 11:35 p.m. on NBC.

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