Kristen Stewart Sideboob Makes An Appearance At 'Cosmopolis' Premiere (PHOTOS)

For Friday's premiere of "Cosmopolis," Cannes 2012 mainstay Kristen Stewart ditched the Balenciaga pants and went bold, bold, bold in a sexy red Reem Acra gown -- that almost revealed more than she probably wanted.

Though she's (now pretty much confirmed to be) dating "Cosmopolis" star Robert Pattinson, Stewart walked the red carpet in the south of France with Tom Sturridge, her "On the Road" costar, and radiated sexy glam in a scarlet dress dotted with lacy cutouts.

But Stewart's plunging neckline was definitely risky, resulting in a view of some pretty daring cleavage. Luckily, it seems some double-sided tape prevented any major accidents.

Cannes has definitely been bringing out the wardrobe malfunction-risking dresses -- from totally sheer bottoms to fellow plunge-rs. Check out Kristen's dress below, and see other sideboob-baring celebs in our slideshow.

PHOTOS:

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• Jacket Jackson

  (Getty photo)

• Gwyneth Paltrow

  (WireImage photo)

• Micaela Schaefer

  (WireImage photo)

• Kristen Stewart

  (Getty photo)

• Julianne Hough

  WEST HOLLYWOOD, CA - APRIL 18: Actress Julianne Hough attends the Us Weekly Hot Hollywood Style Event at Greystone Manor Supperclub on April 18, 2012 in West Hollywood, California. (Photo by Imeh Akpanudosen/Getty Images)

• Miley Cyrus

  LAS VEGAS, NV - MAY 20: Singer Miley Cyrus arrives at the 2012 Billboard Music Awards held at the MGM Grand Garden Arena on May 20, 2012 in Las Vegas, Nevada. (Photo by Frazer Harrison/Getty Images for ABC)

• Angelina Jolie

  Loaded Magazine, August 2000

• Jennifer Aniston

  GQ, December 2005

• Cameron Diaz

  Cosmopolitan, June 2011

• Jessica Biel

  W Magazine, March 2012

• Gwyneth Paltrow

  Harper's Bazaar, March 2012

• Lauren Conrad

  Glamour, May 2012

• Anne Hathaway

  New York, March 2005 (Photo Credit: Getty Images)

• Giselle Bundchen

  New York, May 2008 (Photo Credit: Getty Images)

• Lindsay Lohan

  Los Angeles, July 2009 (Photo Credit: Getty Images)

• Lindsay Lohan

  Malibu, July 2009 (Photo Credit: Getty Images)

• Katy Perry

  Los Angeles, January 2010 (Photo Credit: Getty Images)

• Audrina Patridge

  Las Vegas, May 2010 (Photo Credit: Getty Images)

• Rachel McAdams

  London, January 2011 (Photo Credit: Getty Images)

• Rosie Huntington-Whiteley

  London, June 2011 (Photo Credit: Getty Images)

• Diane Kruger

  Beverly Hills, December 2011 (Photo Credit: Getty Images)

• Calvin Klein

  1992

• American Apparel

• American Apparel

• Jil Sander

  Fall 2010

• Guess Jeans

  Spring 2012

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Comments

[kaysquare]

03:32 PM on 10/11/2012

Is this girl supposed to be "beautiful" or something?

[geldonski]

03:20 PM on 10/11/2012

Who writes this trash, some high school news paper editor?

[geldonski]

03:18 PM on 10/11/2012

The anorexic walking corpse appears again.

[evsw]

06:50 PM on 06/06/2012

I love her awkwardness in the video. It shows she is real snot a drive going through the paces of movie promotion.

[Samuel Masters]

08:42 PM on 05/31/2012

What boob? You mean the little meatball under that dress, lol. She had to do that so people won't use the words, "Flat lands of Nebraska," and her boobs in the same sentence.

[doglove]

06:10 PM on 05/30/2012

I wonder who in her past advised her to never smile.

She is pretty strange in the video, vibrating like she is on a coke high

[FDRbyGodDemocrat]

04:01 PM on 05/30/2012

Dear HuffPo: Like I said earlier, my 14-year-old son is eager for a position on your editorial staff. He loves to surf the Internet for "boob shots," so he would be perfect for your organization.

[hope61]

10:17 PM on 05/30/2012

LOL...Thank you, and everyone else expressing this sentiment.

[ZeraLee]

01:22 AM on 05/30/2012

Sideboob? Didn't they used to call that cleavage?

I need a new dictionary.

[Aitch5]

02:37 PM on 05/29/2012

She looks stunning in that elegant dress.

[gemini68]

09:36 AM on 05/29/2012

Where??? HP- you really need to lay off of these non-stories of people ALMOST baring something that very obviously won't be baring. Low cut dresses are on the red carpet all the time. It's called double stick tape!

[Francois G]

07:26 AM on 05/29/2012

"PHOTOS: Kristen Stewart Almost Bares Sideboob"

Almost ??

Then it's nothing...

This HP article has been rated 'Duh' due to excessive title...

[gen230]

05:54 AM on 05/29/2012

Great body. Great dress. Not a fan of the hair though. It looks a bit .... dishevelled.

[gemini68]

09:37 AM on 05/29/2012

It's meant to look disheveled. She's a young and fashion forward girl, if her hair was in a stodgy updo she'd look too old for her age and matronly.

[gen230]

10:05 AM on 05/29/2012

I doubt anything short of a hollywood special effects make-up artist could make Ms. Stewart look old and matronly. To me, the chaotic hair seems to clash the clean, sleek lines of the dress and it seems slightly out of place. Everything else is beautiful though.

[Not2Normal]

03:35 AM on 05/29/2012

YOW!

[conservativepundit]

01:53 AM on 05/29/2012

I dont know what's worse. HP getting into the porn business or the posters drooling over a kids bewbs.

[Not2Normal]

03:36 AM on 05/29/2012

Since when is 22 years old a " kid" ?

[gemini68]

09:37 AM on 05/29/2012

She's 22 dear.

[Zapote Contra los piques]

12:35 AM on 05/29/2012

Hot...