Margot Robbie taking a break from playing Harley Quinn because it's exhausting

Margot Robbie is taking a break from playing Harley Quinn.

The 31-year-old actress has played the villain in three DC Extended Universe (DCEU) movies in the past five years and confirmed that she intends to rest the character after working on Birds of Prey and The Suicide Squad in recent years.

Margot told Entertainment Weekly: "It was kind of back-to-back filming Birds... and filming this, so I was kind of like, oof, I need a break from Harley because she's exhausting."

The Wolf of Wall Street actress confessed that she is in the dark as to when she will play the role again.

Margot said: "I don't know when we're next going to see her. I'm just as intrigued as everyone else is."

She recently suggested that Harley Quinn is a more independent character than in previous films as she is no longer dependent on The Joker.

Margot explained: "To me, she has so many facets to her personality, it's an endless thing to explore with people.

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"I think in the first Suicide Squad film she had a certain confidence and cockiness, knowing that she had the protection of the Joker. She was like, 'I'll go on this mission, and he'll get me out of here in a second' ... that was kind of her prerogative on that film.

"Then in Birds of Prey it was, 'Oh s***, it's a scary, cold world.' Maybe I can't do it."

The Once Upon a Time in Hollywood star thinks the new film will show how much her alter ego has grown in confidence.

She added: "In this film, time has passed, it doesn't directly link to either of those films, but it's not something that Harley is wrestling with anymore. She's not waiting for Mr. J to show up and she's not wondering if she can do it on her own. She knows."