The 2011 Sundance Film Festival is in full swing in the beautiful town of Park City, Utah -- where it's all about amazing movies, celeb sightings, cold snowy weather and fabulous warm fashion trends!

While the Hollywire girls have been busy covering film premieres and events, they have also been taking note of which wintery fashion trends are taking the film festival by snow storm.  From the bundled-up looks on the snowy streets to the celebrity red carpet premiere styles, Check out which trends Hollywire reports as the hottest in Sundance film festival fashion!

Related Article: 10 Hollywood Holiday Trends To Be Thankful For! 

Animal Inspired Fur Hats: The cutest and furriest in warm winter head gear have been spotted at Sundance and are all over the streets of Park City. A faux fur lovers dream, detailed with ears and even attached gloves.  These hats are both trendy, warm and Sundance sassy!

Celebrities in Animal Hats

Hunter Boots: The hottest in boot trends that have been spotted at this years Sundance. The boot that is both stylish, warm and versatile. A heeled water resistant boot that does a darn good job at keeping your feet both dry and warm while looking stylish.  The Hunter boot comes in a variety of colors and has an array of fleece socks sold separately that can jazz up any outfit.  

Celebrities in Hunter Boots

The Fabulous Parka: The perfect jacket for Sundance being both water resistant and warm! Spotted up and down the Main street in Park City, film goers are making a fashion statement with a jacket that seems to never go out of style. Some including faux fur hoods and every color in parka has been seen during this years festival hours!

Celebrities in Parkas

The Pancho: The ever so popular pancho has graced the streets of Park City, Utah this Sundance season! One of the warmest garments a gal or guy could sport -- the pancho gets the job done as well as looks casual and quirky.

Celebrities in Panchos

The Sling Purse: It seems as though bigger is not better this year at Sundance when it comes to women's purse.  Possibly because its easier to peruse through the snowy streets of Park City with you hands free! it is indeed a fact that the sling purse has made quite the statement at this years festival! 

Celebrities using Sling Purses

Related Article: The Golden Globes: Top Trends That Ruled The Red Carpet

What do you think about these bundled up snowy Sundance Festival trends?