Style File: Scarlett Johansson's 10 Best Red Carpet Looks Ever

Johansson slayed it on the red carpet at the London premiere of The Avengers: Age of Ultron in a breezy printed wide-leg Balmain one-piece. 

At the 2015 MTV Movie Awards, Johansson tapped her flirty side with a bubblegum pink Zuhair Murad one-piece that she styled with an aqua Roger Vivier clutch and pastel Sophia Webster heels.

Johansson was radiant at the 2015 Oscars, taking her red carpet stroll in a curve-hugging custom emerald green Atelier Versace creation with an amazing Swarovski crystal-embroidered collar.

Johansson worked her curves (and her baby bump) in a ruby faille Vivienne Westwood Red Label number, amping up the glamour in with a diamond wreath of a necklace and leopard print Christian Louboutin pumps.

Mom-to-be Johansson stepped out looking utterly radiant in scarlet red Michael Kors suit and black tank. crop top and matching midi skirt, with black ankle-strap sandals. A gold statement necklace, a black clutch, and silver Schutz heels rounded out her look.

To début Under the Skin at the Venice Film Festival she selected a chiffon Versace gown that drapes her hourglass shape in all the right places. Though the embellished straps and full train provide flair, it is her jaw-dropping sapphire, emerald, and diamond Bulgari bib necklace that really brings the wow.

"No matter what she wears, this girl has attitude," says Gabbana of Johansson in sleek Dolce & Gabbana with turquoise Irene Neuwirth earrings.

We love the counterpoint of a milkmaid crown of braids with saucy lips (Dolce & Gabbana lipstick in Devil) as well as her rose-bodice Prada number paired with red Christian Louboutins.

Johansson, who is the face of Dolce & Gabbana's beauty and fragrance line, chose a one-of-a-kind tulle gown with a pearl-encrusted bustier for the Met Gala. "I've worn their clothes forever," she has said.

The actress looks sophisticated in a silk and organza Dior cocktail dress with a Tod's clutch and Roger Vivier shoes. Her thoughts on the black-and-white outfit? "Very chic."

"Before proposing a look to her, we always ask, 'What story do you want to tell?' " says Dolce of this custom lace Dolce amp Gabbana stunner she wore as a presenter at the Oscars. "It works because it matches her mood."

This sculptural Armani Privé dress, which is inspired by the luminosity of moonlight, took 120 hours to make. The delicate sheen of the silk organza and aurora borealis lamé plays up the sparkle on her Kotur clutch and Armani Privé pumps.

In Preen by Thornton Bregazzi, she is "modern and sexy," says designer Justin Thornton. The mini's hue complements the cheery sunrise tattoo on her left arm.

"I have always leaned toward classic Hollywood glamour—it suits my body better," she has said. This '50s-style tea-length Louis Vuitton dress makes that point beautifully.

As a Golden Globes best supporting actress nominee for Match Point, the blond beauty raved about this gown's body-conscious design. "The support is all built in," she said. "It's the Valentino way."