Think back to 2008, when Angelina Jolie and Brad Pitt were expecting twins.

When Jolie gave birth to Knox Léon and Vivienne Marcheline on July 12, 2008, the photos were so highly sought-after that People and Hello! reportedly purchased them for a remarkable $14 million (approximately £10.5m).

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Baby Knox Jolie Pitt
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Fast forward to 2016, when the twins were eight years old.

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A much more grown up Knox
Knox, Maddox, Shiloh and all of Angelina Jolie's children have grown uppinterest
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And now, in 2017, the twins are 9 years-old and looking more grown up than ever.

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Knox with his mum
Angelina Jolie's daughter Vivienne Marcheline Pittpinterest
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Angelina Jolie walks through LAX airport with Vivienne in March 2017

Every child in this cute family voiced a character in Kung Fu Panda 3, though little Vivienne had already gotten in on the acting game with her mother when she appeared alongside Jolie in 2014's Maleficent.

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How grown up does Vivienne look?

A fun tidbit about Vivienne's role in the film: apparently, other child actors were frightened of Jolie in her intense makeup for the movie, so the filmmakers picked Vivienne to portray a young Princess Aurora because she wouldn't be afraid.

From: Good Housekeeping US