Jessica Chastain

The Most Glamorous Cannes Film Festival Moments

The 66th annual Cannes Film Festival kicks off tomorrow, and we can't wait to see all the sexy celebrities hit the red carpet.

The 66th annual Cannes Film Festival kicks off tomorrow, and we can't wait to see all the sexy celebrities hit the red carpet. Before we catch a glimpse of our favorite stars in the South of France, we're taking a look back at all the glamorous actors and actresses who have attended the cinema event in years past.

There have been plenty of great moments to capture, including last year's red carpet with Kristen Stewart, Garrett Hedlund, Jessica Chastain, and Shia LaBeouf; Leonardo DiCaprio and Cameron Diaz's photo-op back in 2002; and Charlize Theron's sexy outfit from 2004. Click through to see all the famous faces, and make sure to check back for all the updates straight from Cannes, where we'll be covering the most exciting premieres and parties.

Movies

Justin Timberlake to Star in a Biopic and More of This Week's Biggest Casting News

There's lots of big news in this week's casting update, including the latest tidbit that Justin Timberlake has signed on to play '70s record executive Neil Bogart in a biopic.

There's lots of big news in this week's casting update, including the latest tidbit that Justin Timberlake has signed on to play '70s record executive Neil Bogart in a biopic. Meanwhile, Michael Fassbender and Natalie Portman are taking on Shakespearean roles, and small screen star Nina Dobrev will take a big screen role in a comedy. James Franco has found his next directorial project, and Colin Firth is in talks for not one, but two upcoming parts. Click through to find out where your favorite stars are headed next!

workouts

Muscle Up With Martial Arts: An Intro to Krav Maga

To prepare for physically demanding roles, many Hollywood heroines turn to the Israeli martial art Krav Maga.

To prepare for physically demanding roles, many Hollywood heroines turn to the Israeli martial art Krav Maga. Created by the Israeli army for training its troops, this intense workout will whip you into shape while also teaching you some self-defense moves. LA-based sensei Roy Elghanayan showed us five basic Krav Maga moves. Watch the video to get acquainted with this martial art; it might just be the workout you've been looking for.

Jessica Chastain Joins Crimson Peak and More of the Week's Biggest Casting News

Stars are lining up some fun new roles this week: Nicole Kidman has scored a cameo in one of Hollywood's most anticipated sequels, while Jessica Chastain and Benedict Cumberbatch are joining Emma Stone on Guillermo del Toro's next flick.

Stars are lining up some fun new roles this week: Nicole Kidman has scored a cameo in one of Hollywood's most anticipated sequels, while Jessica Chastain and Benedict Cumberbatch are joining Emma Stone on Guillermo del Toro's next flick. Jennifer Garner may be teaming up with Kevin Costner, and Brad Pitt has found his next role. Click through to see these tidbits and more of the week's most exciting casting news.

— Additional reporting by Shannon Vestal

50+ Celebrities to Like on Facebook!

Facebook is one of our daily obsessions, and celebrities from all over the world use the social network to stay in touch with fans.

Facebook is one of our daily obsessions, and celebrities from all over the world use the social network to stay in touch with fans. From posting cute snaps to shooting down rumors through status updates, stars use Facebook in a variety of different ways. Click through to see a few of our favorite stars to "like" on Facebook and be sure to check out POPSUGAR on Facebook.

Source: Facebook

Givenchy's Lucrezia Bag Is the Latest A-List It Bag

First, there was the Givenchy Antigona satchel, which reigned supreme in 2012, but now celebrities are all over the label's newest Spring 2013 creation, the Lucrezia.

First, there was the Givenchy Antigona satchel, which reigned supreme in 2012, but now celebrities are all over the label's newest Spring 2013 creation, the Lucrezia. So far, we've spotted Miranda Kerr, Jessica Chastain, Amanda Seyfried, Charlize Theron, and January Jones toting the bag in its many variations. Click on to see how these starlets styled their Lucrezia staple with their wardrobe.

That's a Wrap on Fashion Week 2013 — See All the Stars!

It was a busy month in fashion!

It was a busy month in fashion! NY Fashion Week kicked off a string of stylish runway shows including stops in London, Milan, and Paris. Celebrities like Jessica Chastain, Jessica Alba, and Kim Kardashian were staples in the front row, while Matt Damon and Justin Timberlake brought their star power to support the designers. Click through to see all the famous faces at Fashion Week 2013!

Stylish Stars Watch Kate Moss Return to the Runway at Louis Vuitton

Kate Moss donned a wig and walked the runway at the Louis Vuitton Fall 2013 fashion show in Paris today.

Kate Moss donned a wig and walked the runway at the Louis Vuitton Fall 2013 fashion show in Paris today. Fashionable celebrities Naomi Watts, Elizabeth Olsen, and Jessica Chastain sat front row at the show to watch Kate make her return to her old stomping ground. Kate's husband, Jamie Hince, and daughter, Lila Grace, also made the trip over the Channel to watch the model mom work her stuff. The Louis Vuitton show wasn't the only big fashion news Kate was working on — Kate was named "fashion royalty" by The Sunday Times yesterday, the same day that she attended Carine Roitfeld's CR Fashion Book Issue 2 launch in the City of Light.

Kate's see-through Louis Vuitton dress was surprisingly less revealing than her recent nude photo shoot with Rihanna for V Magazine, which featured the singer and the model in alternating topless poses.

See All the Stars at Paris Fashion Week

Paris Fashion Week kicked off last week, and stars, models, and musicians have been flocking to the French runways ever since.

Paris Fashion Week kicked off last week, and stars, models, and musicians have been flocking to the French runways ever since. Elizabeth Olsen and Naomi Watts teamed up at the Louis Vuitton show earlier today and watched as Kate Moss made her return to the runway. Renée Zellweger, Rebecca Hall, and Zoe Saldana chatted during Miu Miu, sitting front row with January Jones, while Jessica Alba posed solo in a bright blue look on Tuesday. Take a look at all the celebrities at Paris Fashion Week as the fashion fun wraps up today.

Poll

Parisian-Chic Partygoers Go All Black — Who's Most Fabulous?

The stars took a break from the Paris Fashion Week front rows to party alongside Carine Roitfeld for CR Fashion Book's second-issue launch in Paris last night.

The stars took a break from the Paris Fashion Week front rows to party alongside Carine Roitfeld for CR Fashion Book's second-issue launch in Paris last night. Chic attendees were clearly feeling black, but each worked the classic palette in her own fashion-forward way. Joan Smalls put her left leg on display in a one-shoulder gown with a waist-high slit, Kate Moss went sheer in a Saint Laurent creation topped with a tuxedo blazer, while Jessica Chastain covered up in a formfitting, long-sleeved gown, and Jessica Alba got girlie in a textured one-shoulder minidress. Get a good head-to-toe look at each partygoer, then tell us, which all-black ensemble is most fabulous?