United Kingdom, Dec. 4 -- Margot Robbie was worried about filming Wuthering Heights so soon after giving birth.

The Barbie actress was grateful for reassurance from director Emerald Fennell as she took on the role of Cathy in the new movie adaptation of Emily Bronte's novel because she wasn't in her usual "headspace" after welcoming her son with husband Tom Ackerley last year.

Margot told British Vogue: "I was three months postpartum when we started shooting. So I was in a very different headspace. I didn't do my usual routine. It was more haphazard...

"And I remember saying to Emerald, 'What if I'm not prepared enough?' She kept saying, 'I don't want you to prepare. I just need you to be in the moment.'

"Which was a lovely way of rel...