Glam is back at the Cannes Film Festival! See Idris Elba, Anne Hathaway, Julia Roberts, more stars

Idris Elba and his wife Sabrina Elba who arrived in a perfectly tailored suit and gorgeous gown for the screening of "Three Thousand Years of Longing" on May 20.

Jessica Wang wears a stunning pastel gown to the screening of "Triangle of Sadness." 

Ethan Hawke gives a cool point to cameras ahead of the "Triangle of Sadness" screening May 21. 

Woody Harrelson gave the cameras a soft grin ahead of the "Triangle of Sadness" screening. 

 Ly Nha Ky poses elegantly in this delicate white gown ahead of the "Triangle of Sandess" screening.

Yes, Leonie Hanne. THIS is an entrance.

Michelle Salas looks stunning in this ombre black and silver dress.

Rose Bertram wore a gorgeous purple gown on the Cannes red carpet.

For Alessandra Ambrosio, it was all about the flash. Her reflective gown wowed onlookers. 

Model Soo Joo Park rocked a white gown with cutout bodice and thigh-high slit.

Actress Poppy Delevingne elegantly arrived in a gray gown.

Italian actor Lorenzo Zurzolo showed up spiffy in a double-breasted suit for the "Eo" photocall.

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