Margot Robbie did not recognize Prince Harry at party

Margot Robbie attended Suki Waterhouse's party and was snapped in a photobooth with Prince Harry, Cara Delevingne, Sienna Miller and the host.

However, the ‘Suicide Squad’ blonde admits she did not recognize the 31-year-old royal until after half an hour of conversation.

Taking to Entertainment Tonight, she said: "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."

An insider reported the couple looked “particularly close” at the party, including giving a big hug when they saw each other.

According to the source, “Harry seemed completely interested in what she had to say. She was very bubbly and loud while he seemed to be enjoying her zaniness and free-spirited nature.”

"Everyone was talking about how Suki and Harry seemed particularly close, some even said there was the start of a romance brewing. Suki fits the bill as to what he seems to like in a girl - bubbly, blonde and posh."