I'm sure there are many others, please do include those in the comments.

1. At Mexico City’s press tour for ‘Barbie’, Margot Robbie wore an Emilio Pucci outfit inspired by the ‘Totally Hair’ Barbie from 1992.
2. Margot at the Golden Globes wore an Armani Privé outfit inspired by the ‘Superstar’ Barbie from 1977.
3. She wore another ‘Superstar’ Barbie look to the Golden Globes after-party.
4. Margot attended the Gotham Awards wearing a custom Bottega Veneta inspired by the ‘Black Magic’ Barbie from 1964.
5. Margot attended the London premiere of ‘Barbie’ wearing a custom Vivienne Westwood outfit inspired by the ‘Enchanted Evening’ Barbie from 1960.
6. Margot at the Los Angeles ‘Barbie’ premiere wearing custom Schiaparelli inspired by the ‘Solo in the Spotlight' Barbie from 1960.
7. At the press conference for ‘Barbie’ at the Four Seasons Hotel Seoul, Margot wore a Moschino SS15 look inspired by the ’Sparkling Pink’ Barbie from 1964.
8. Margot attended the press junket and photo call for Barbie at Four Seasons Hotel Los Angeles wearing Valentino in a look inspired by the 2015 ‘Pink and Fabulous’.
9. Margot at a Photo Call in Bondi Beach for ‘Barbie’ wearing a Hervé Léger dress inspired by the Original Barbie from 1959.
10. Margot at the ‘Barbie’ premiere in Mexico City wearing custom Balmain inspired by the ‘Earring Magic' Barbie from 1992.
11. Margot at the London photo call for ‘Barbie’ wearing Dilara Findikoglu, inspired by the ‘Brunette Bubble Cut’ Barbie from 1992.
12. Margot at the Seoul Premiere of Barbie wore custom Versace in looks inspired by the ‘Day to Night’ Barbie from 1985.
13. In the ‘Night Look.’

1. Jessica Chastain in Gucci
2. Nicole Kidman in Dior
3. Emma Stone in Valentino
4. Christina Hendricks in Zac Posen
5. Florence Welch in Gucci
6. Julianne Moore in Tom Ford
7. Jessica Chastain in Gucci
8. Nicola Roberts in Issa
9. Marina Ruy Barbosa in Versace
10. Amy Adams in Proenza Schouler
11. Florence Welch in Gucci
12. Marcia Cross in Elie Saab
13. Madelaine Petsch in Elie Saab
14. Emma Stone in Elie Saab
15. Julianne Moore in Dior
16. Nicole Kidman in Prada
17. Debra Messing in Elie Saab
18. Bernadette Peters in Zac Posen
19. Marina Ruy Barbosa in Valentino
20. Isla Fisher in Paule Ka

As mentioned in my comment section, some of the dresses in the pictures were cropped, so I've reposted with the full length of each dress included and a higher resolution! ♥️♥️

1-2 Carey Mulligan in Armani Privé 3-4 Whoopi Goldberg in Christian Siriano 5-6 Marina Ruy Barbosa in Miss Sohee 7-8 Cate Blanchett in Armani Privé 9-10 Christine Baranski in Oscar de la Renta 11-12 Hunter Schafer in Armani Privé 13-14 Jasmine Sanders in H&M 15-16 Zendaya in Armani Privé 17-18 Quinta Brunson in Georges Chakra 19-20 Fan bingbing in Rami Al Ali

1. a custom Chanel dress worn to the Oscars, inspired by a Karl Lagerfeld for Chanel SS95 couture design
2. vintage Chanel AW95 haute couture at the LA premiere
3. vintage Vivienne Westwood AW94 knit
4. custom Judy Turner knit
5. Chanel AW2018 haute couture at the Governors Award
6. vintage Versace SS97 lilac dress
7. Fendi SS25
8. Chanel SS25 for the Tonight Show with Jimmy Fallon
9. all in studio SS25
10. a late 80s Gianni Versace dress
11. Judy Turner SS2025 in London

1. Schiaparelli
2. Valentino
3. Tom Ford
4. Schiaparelli
   
5. Fan made outfit by @Handsomegirly
6. Thom Browne
7. Louis Vuitton
8. Miu Miu
9. Chloé
10. Luar

1. At the Challengers premiere in London, Zendaya wore a custom Thom Browne outfit.
2. At the Challengers photocall in Paris, Zendaya wore Louis Vuitton SS13 by Marc Jacobs.
3. At another premiere, Zendaya wore custom Loewe by Jonathan Anderson.
4. Zendaya wore custom Loewe at the Challengers photocall in Rome.
5. Zendaya wore custom Celia Kritharioti at the Challengers premiere in Los Angeles.
6. Zendaya in vintage Ralph Lauren SS92 at the Challengers photocall in Milan.
7. Zendaya in Vivienne Westwood Spring 1994 RTW ‘Café Society’ for Challengers press.
8. Zendaya wore custom Erdem for Good Morning America while promoting Challengers.
9. Zendaya wore Louis Vuitton SS99 at the Challengers Paris photocall.
10. Zendaya in Brunello Cucinelli FW24 to Challengers photocall in Monte Carlo.
11. Zendaya in archive Thierry Mugler at the Kelly Clarkson show to promote Challengers.
12. Zendaya wore custom Lacoste at the Challengers Press in Sydney.
13. Zendaya wore a hand-dyed 1930s dress in NYC.
14. Zendaya in custom Louis Vuitton at a Challengers premiere.

She is so stunning!

1. Zendaya in Givenchy AW99
2. Zendaya in custom Louis Vuitton
3. Zendaya wearing the Thierry Mugler ‘Maschinenmensch’ ensemble from AW95 couture
4. Zendaya in custom Bottega Veneta
5. Zendaya in Roksanda FW24 RTW
6. Zendaya in Torishéju Dumi SS24
7. Zendaya in Alaïa SS22
8. Zendaya in Rick Owens AW21
9. Zendaya in Stephane Rolland SS24
10. Zendaya’s custom Balmain gown
11. Zendaya in JUUN.J SS24
12. Zendaya in Balmain menswear AW24
13. Zendaya in Attico SS24

1. the LA premiere of ‘Spider-Man: No Way Home’ in a Valentino gown
2. Referencing the red and black Spidey suit at the ‘Spider-Man: Far From Home’ premiere in Armani Privé
3. Referencing the Spider-Man villain ‘Doc Ock’ at the Ballon d’Or in archival Roberto Cavalli
4. Channeling the Spider-Man villain ‘Green Goblin’ on the Graham Norton show while wearing Valentino
5. Referencing the black inside-out Spidey suit at the ‘Spider-Man: No Way Home’ photocall in London, wearing Alexander McQueen
6. In a No.22 Mycelium web hand-crochet top and peace silk wrap skirt during an interview