Greta Gerwig and 'Barbie' Cast Go Behind the Scenes of Film's Costumes in New Clip (Exclusive)

"Barbie" is now available to watch at home

Barbie fans are getting a closer look at the colorful costume designs by Jacqueline Durran.

As the blockbuster film debuts on digital Tuesday, Warner Bros. Pictures shared a behind-the-scenes clip exclusively with PEOPLE, in which director Greta Gerwig, Durran and costars Margot Robbie and Ryan Gosling discuss the process behind the film's costumes.

"I think rule 1 of Barbie Land is you just always have the right outfit on," Gerwig, 40, says. Durran adds: “It’s quite difficult to know how to approach this because the character is Barbie, and Barbie can be anything. She can represent any person, any profession, anything.”

The clip features footage of Durran working with Gerwig and the movie's ensemble cast of Barbies in Barbie Land, as well as various sketches of what became the character's final costumes in the movie.

“Especially in this film, costumes are everything," Gosling, 42, says. "Unless you’re dressed for it, you’re not doing it. There’s a meme out right now that says ‘the costume designer for Barbie deserves a free pass to heaven.’ I agree.”

Related: 'Barbie' Is Getting an IMAX Release in September Featuring Never-Before-Seen Footage

Durran explains in the clip how the production purposefully designed each Barbie's costumes to make the characters distinct from the humans shown throughout the movie.

“The main thing that separates Barbies from humans is every time you see a Barbie, she’s fully dressed for a purpose," Durran notes.

Gerwig says, “The one thing that really helped was having big details, like big buttons, big earrings, big necklaces. There’s something about the big chunkiness that made her look more doll-like.”

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Durran — who has won Oscars for her work on 2012's Anna Karenina and Gerwig's 2019 film Little Women, among eight total nominations — worked with each of the actors portraying Barbies to create a unique look for each character.

“Each of the actresses would choose something that would be expressive of their character. In a way, what we’re talking about is how you would want to represent yourself as a woman," Durran says in the clip. "So each person needed to have an input in what that would be.”

Related: See Ryan Gosling Rehearse His 'I'm Just Ken' Musical Number in Behind-the-Scenes 'Barbie' Video

In August, Durran told PEOPLE she wanted to make Barbie's costuming feel "timeless" in order to capture the entire history of Mattel's iconic doll brand.

"I start off with 1959, obviously, then there’s the beach, which is very much influenced by the early ‘60s. And then there's the minidress, which is also a bit ‘60s," she said at the time.

"I tried to set up this idea that we were going through time, but at the same time, I wanted the passing of time to be related to the past of Mattel. I was looking at what Mattel had done in '62 or '65 or '70, and trying to tie in themes from Mattel and fashion and the story."

Barbie, which is still playing in theaters, is now available to own on digital.

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