The actress picks a distinctly schoolgirl silhouette, brightening the ensemble up with a lemony skirt and printed collared blouse.
Black and gold have never look as good as they do in this sophisticated gown.
The Oscar-nominated actor works shades and a gray suit on the carpet as his talent agent wife styles a plunging, deep teal design.
Now this is a red carpet worthy gown! Goya's Elie Saab number trails beautifully behind her, creating a dramatic (and overall stunning) effect.
This frothy gold confection has Valentino written all over it.
We're not sure which is better here: That regal red-and-gold tiered mini, or those tulle embellished sandals.
The actress is understated chic in a lustrous black design.
Back at it! The actress' slick street style rival her killer red carpet looks (wearing a Jonathan Simkhai dress).
The Avengers star keeps it casual at the Spotlight photocall.
The supermodel slips on a breezy printed Philosophy di Lorenzo Serafini number with a deep V-neck and ruffled peplum waist.
This punchy dress gives off a Jackie O vibe, no?
Armani Prive crafted this timeless silver confection.
Perfection! Diane drops jaws yet again in a glamorous caped Prada gown.
Looking dapper as ever, the actor slips on a velvet tuxedo jacket and bow tie.
Twirl! The supermodel flaunts her breezy white Philosophy gown.
The Hunger Games star shuts down the Everest premiere in a crisp Dolce & Gabbana gown with a plunging jeweled back.
Remember those Alberta Ferretti made-for-princesses gowns? This is one of 'em!
This beaded halter Ralph & Russo gown is nothing short of exquisite.
At the Everest premiere, she makes a subtle statement in a romantic feathered gown.
The engaged pair stop for a quick candid, with Kathryn in an emerald design and Josh in a Dolce & Gabbana tux.
This voluminous black Marchesa gown is just as classic as it is compelling.
Trading in her bohemian wear, the supermodel channels ladylike elegance in this chic (yet still sexy) tiered lace ensemble.
Well hello! The actor flashes a quick wave.
All hail the queen! In a breathtaking Thakoon cutout and rust-hued hat, Diane effectively sets the style bar for this film festival sky-high.