Red Carpet Arrivals

Oscar-nominated pair Brad Pitt (wearing a Tom Ford tuxedo and David Yurman ring) and Angelina Jolie (in Elie Saab) looked elegant in matching black. The Best Actress nominee's half-updo highlighted her bold emerald Lorraine Schwartz drop earrings.

Best actress nominee Anne Hathaway made the most of her big night, arriving in a champagne-colored strapless Armani Prive gown that glittered with paillettes and Swarovski crystals. When the Rachel Getting Married star turned to give an over-the-shoulder pose, she revealed the onyx and black crystal dragon brooch affixed to the back of her gown. The actress also accessorized with Cartier diamonds worth more than one million dollars.

Best Actress nominee Kate Winslet looked stunning an asymmetrical Atelier Yves Saint Laurent gown and Chopard jewels. Despite her picture-perfect appearance, the Reader star admitted, "I'm extremely nervous."

Best Actress nominee Meryl Streep chose a smoky gray silk chiffon gown custom-made by Alberta Ferretti, Fred Leighton jewels and a Ferragamo clutch. The 15-time Academy Award nominee was escorted down the red carpet by her daughter Louisa. "I'm really happy she came with me," said Streep. "I need back up."

All eyes went to the collar of Fred Leighton jewels worn by Best Supporting Actress nominee Taraji P. Henson, who wore a tiered Roberto Cavalli gown. She accessorized with Jimmy Choo heels and a red Mary Norton bag.

"Hi, Mom! Hi, Dad! Hi to my sister!" shouted Freida Pinto, as she and Slumdog Millionaire co-star Dev Patel did their first live interview on the Oscar red carpet. Patel was dapper in a Burberry tuxedo, and Pinto continued her winning awards season style streak in a John Galliano gown. She carried a Judith Leiber clutch and wore Martin Katz jewelry, including a ring set with a 150-year-old diamond from her native India.

Presenter Miley Cyrus looked light as air in an ethereal Zuhair Murad dress that she joked, "could possibly weigh 100 thousand pounds." The young singer, who lent her voice to the nominated Bolt, added Neil Lane jewelry, BCBG shoes and a clutch from Mary Norton.

In a sea of red and white dresses Natalie Portman stood out in an orchid gown by Rodarte. The actress's minimal Kwiat jewelry and elegant updo highlighted her flawless skin.

Up for her second Oscar, Marisa Tomei admitted that The Wrestler "was a difficult movie to make." Tomei looked effortlessly stylish in a pearl gray Versace Atelier satin organza ball gown, satin open-toe heels with jewel detailing and estate jewels from Van Cleef & Arpels.

It was date night for black-clad couple Robin Wright Penn (in Monique Lhuillier) and her Oscar-nominated husband Sean Penn. The actor (in a Giorgio Armani tuxedo) is up for Best Actor for his turn as Harvey Milk in Milk.

Presenter Jessica Biel carried a white iPhone that matched her Prada dress, which she accented with a black Prada clutch and Louis Vuitton Les Ardentes jewelry.

2008 Academy Award winner Marion Cotillard made her return to the Oscars' red carpet in Dior Couture, Chopard jewels and a Dior clutch. "I'm never home but I'm happy," said Cotillard of her life post-Oscar. "I've had the opportunity to meet directors and work with amazing actors like Penelope Cruz and Johnny Depp!"

"I learned so much from Phillip Seymour Hoffman and Meryl Streep," said Amy Adams, who teamed up with the stars in Doubt. The Best Supporting Actress nominee chose a silk and satin crimson gown by Carolina Herrera and a jeweled bib necklace by Fred Leighton (as seen on Beyonce in the November issue of InStyle)!

The Wrestler

's Evan Rachel Wood played up her pale complexion in an ivory Elie Saab haute couture gown, accented with Neil Lane gems. Quite appropriate, as an appearance on the Great White Way is up next for the young actress.

Pre-performance, Beyonce posed on the red carpet in a gold and black brocade mermaid-style gown from House of Dereon Couture.

After accepting the best supporting actress award at Film Independent's Spirit Awards in Alaia just a day earlier, Vicky Christina Barcelona star Penelope Cruz went for a more dramatic look for the Oscars, choosing a vintage Balmain gown and Chopard jewels.

Twilight

heartthrob Robert Pattinson made his Oscar debut looking dapper in a classic black Dolce & Gabbana tuxedo.

High School Musical

stars Vanessa Hudgens (wearing Cathy Waterman earrings) and Zac Efron (in Dolce & Gabbana) refused to divulge what Efron called their "top secret" roles in the show. Less mysterious was the maker of Hudgens's fanciful dress: Marchesa. "I feel like a young Audrey Hepburn," Hudgens said of the confection, which was custom-altered (the original design was shorter) by designer Georgina Chapman.

For the second year running, Heidi Klum wore a red dress (designed by Roland Mouret) to support Diet Coke’s Heart Health campaign. "I designed a charm amp#91;made of diamonds and rubiesamp#93; that people can buy on dietcoke.com," said Klum (also wearing jewelry by Lorraine Schwartz). "It's supposed to resemble a red dress."

After celebrating with Giorgio Armani at the opening of the his flagship store in New York City last week, Oscar presenter Alicia Keys arrived wearing a plum chiffon gown from the designer's Armani Prive collection, Fred Leighton jewels and a Zufi Alexander clutch.

Sarah Jessica Parker

, on the arm of husband Matthew Broderick (in Timothy Everest Bespoke), called her Dior Haute Couture dress a shade of "barely mint, maybe seafoam."

Melissa George

sizzled in a body-skimming white Dolce & Gabbana, Atelier Swarovski jewels and a Ferragamo clutch.

Both Josh Brolin (a Best Supporting Actor nominee) and his ravishing wife Diane Lane wore Dolce & Gabbana, Neil Lane jewels and a Lauren Merkin clutch.

A curls-sporting Amanda Seyfried channeled Veronica Lake in a bow-accented couture gown from Valentino. The Mamma Mia lead added Fred Leighton jewels.

Access Hollywood

's Maria Menounos posed for the cameras before she began her gig interviewing stars on the red carpet. The TV correspondent chose a charcoal and nude tulle Randi Rahm gown with a corseted bodice and rosette bedecked skirt.

Past Oscar nominee Virginia Madsen showed off her svelte figure in a belted crimson Kevan Hall gown and eye-catching gold acessories-including drop earrings from Loree Rodkin, Rene Caovilla heels and a Katherine Baumann clutch.

Vote for your favorite looks of the night!