The "Suicide Squad" star was pictured in a photobooth with the 31-year-old prince, Cara Delevingne, Sienna Miller and Suki Waterhouse at a house party, but admits she had no clue she was with royalty, reported Female First.
"I didn't know it was him for about half an hour talking to him. Suki was having a housewarming party. I was like, 'I'll pop in for 10 minutes.' About six hours later the photo booth happened.