The thing that gets me about the marketing around the Barbie movie is that the entire thing is such a blatant performance. Margot Robbie has been doing this press tour in recreated or inspired by Barbie outfits. Everyone is in on-brand wardrobe, including the interviewers.
All the interviews are either on the film's set or whatever talk show or news show they're on has changed their own set to be Barbie themed - even the hosts are in on-brand wardrobe.
The color palate of the film is maintained. Everything is constructed. The aesthetics are practically choreographed. There's a group conversation between Great Gerwig and the actors where Michael Cera is also present, whose character is an outsider in the film, and while everyone else wears beige and white (except Margot Robbie who wears another Barbie inspo outfit, link above), he wears dark blue and sits at the edge of the table while all the others are behind it.
These press tour interviews have been formulaically designed to feel candid for decades. Publicity teams put insane amounts of effort in to make the viewer think they're witnessing actors and directors being their unfiltered selves and constructing an image of them as an extension of their character in the project they're promoting. And Barbie said, why pretend this isn't another show we're putting on?
For years the press around films has said, you the audience are the observer in the panopticon and these actors are here for you to observe, project onto, and be entertained by. They've done this so the viewer feels connected and, ultimately, buys into the image they're being sold, very literally, while thinking it's reality. Barbie's press says, instead, actually it's not a panopticon, it's theatre, and you're the audience so have a seat, and if you're entertained, please come back.
It's brilliant. It's different. It's genius. And it's more honest in its contrived and carefully constructed state than any movie promo tour I've seen possibly ever.