LOS ANGELES, CALIFORNIA: Fans frequently mistake Margot Robbie for Emma Mackey, and reports have stated that when some fans were overjoyed to see the 'Sex Education' star out and about, what they really saw was 'The Wolf of Wall Street' actress. Robbie who has previously acted in movies like 'Suicide Squad', 'Once Upon a Time in Hollywood', and 'Babylon' will play the title role in Greta Gerwig's upcoming 'Barbie' movie. Mackey also makes an appearance, and it's clear that it wasn't a fluke that she was cast in 'Barbie' with her famous 'twin'.

In a recent interview, Robbie mentioned Mackey's selection for 'Barbie', via BuzzFeed Celeb. She said that for years fans had mistaken her for the French-British actress, 27, and she and Gerwig were influenced by this to put her in the Barbie movie. Robbie clarified how they thought it would be amusing to have a moment in the movie making light of the physical resemblance between the two women in response to the fans' confusion. However, the problem was that when they were side by side, it was clear that they didn't genuinely look comparable enough.

What did Margot Robbie say about Emma Mackey?

"I've been getting told for years that I look like the girl from Sex Education, who is Emma Mackey," Robbie explained. "And she plays one of the Barbies in the movie because Greta and I thought it would be funny. We were going to do like, this whole joke about us looking similar... and then once we got all dressed up as our Barbies, we were kind of like, 'We don't actually look that similar.' Like when she's got her brown hair, and I've got my blonde hair, we don't look that similar. So, we didn't put that joke in the movie."

'I just say, 'Thank you'

Fans continue to mix up Robbie and Mackey even if they may not be exactly alike like a set of twins. This isn't likely to be changing immediately; Robbie acknowledges she has simply begun thanking people for their support of Mackey's work and doesn't seem to correct them. "But, when people come up and say, 'I loved you in Sex Education,' I just say, 'Thank you. Thank you so much,'" Robbie noted.

Meanwhile, fans swiftly reacted, with one writing, "THEY SHOULD'VE KEPT THE JOKE." "Imagine a scene with the two blondes, same makeup and similar outfits bumping into each other and making jokes, that would be everything," wrote another. One said, "Emma only looks like margot when she has blonde hair, brunette she really looks very different." "Nahhh they for sure look like twins," claimed another. Another commented, "I thought they were the same person until a while ago k."