Actress Margot Robbie has opened up about starring in 'Suicide Squad' alongside Jared Leto. 

Robbie, who plays Harley Quinn in the highly anticipated movie, told ShortList magazine that he was a constant surprise and she "loved" being on set with the 30 Seconds To Mars frontman:

"I was... surprised. I was surprised! There's an understatement! I loved that stuff. Jared was doing half my work for me."

She added: "Harley is very much a part of a relationship. To have such commitment from the other half made my job a thousand times easier, and a thousand times more fun. I didn't know what was going to happen when we got on set. It's exciting to act opposite that."

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Watch a trailer for 'Suicide Squad' below: