Brad Pitt who was an executive producer of 'True Story' surprised attendees at the screening. Photo: Getty Images
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Ethan Hawke and wife Ryan Shawhughes were at the festival for his film 'Ten Thousand Saints'. Photo: Getty Images
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Kristen Wiig stars in 'The Diary of a Teenage Girl' which screened at the festival. Photo: Getty Images
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True Story star James Franco posed with director Rupert Goold. Photo: Getty Images
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Sarah Silverman always knows how to get a crowd laughing. Photo: Getty Images
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Co-founder of the Sundance Film Festival Robert Redford debuted 'A Walk in the Woods', which was his first film to show at the festival in over a decade. Photo: Getty Images
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Chris Pine and Zoë Kravitz hung at the SkullCandy Sessions Live party. Photo: Getty Images
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Jason Segel was in town for his movie 'The End of the Tour'. Photo: Getty Images
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Hilaria and Alec Baldwin bundled up daughter Carmen while walking around Main Street. Photo: Getty Images
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Cynthia Nixon looked chic in winter white at the 'Stockholm, Pennsylvania' party at the GREY GOOSE Blue Door. Photo: Getty Images
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Jason Schwartzman stopped by the Columbia at the Village pop-up shop. Photo: Getty Images
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Frances Bean Cobain reunited with her mom, Courtney Love, at the 'Kurt Cobain: Montage of Heck' screening. Photo: Getty Images
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James Marsden bro'd out with 'D Train' co-star Jack Black at the film's screening. Photo: Getty Images
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Lena Dunham asked to meet Toni Collette while trying on Woolrich John Rich & Bros parkas at The Variety Studio at Sundance Presented by Dockers. Photo: Courtesy of WireImage
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Nicole Kidman opted for a black and white ensemble for her 'Strangerland' screening. Photo: Getty Images
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Brooklyn Decker (above with James Marsden) hosted the Cards For Humanity Celebrity Game Night presented by InList that benefited EIM Haiti in Park City.
Photo Credit: Josh Blanchard/Getty Images
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Chris Pine strikes a pose at the ChefDance Media Lounge sponsored by Tim Hortons Cafe & Bake Shop.
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Kathryn Hahn kept her attire super casual in high-waisted jeans. Photo: Getty Images
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'Knock Knock' star Keanu Reeves hit the movie's screening. Photo: Getty Images
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New dad Ryan Reynolds caught up with James Franco at the Variety Studio. Photo: Courtesy of WireImage
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Kellan Lutz sent a message of love from the McCafé Lounge.
Photo: Jamie McCarthy/Getty Images for McDonald's
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Gina Rodriguez catches up with Nikki Reed at Kari Feinstein’s Sundance Style Lounge presented by Aruba. Photo: Wireimage
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Jorma Taccone and Marielle Heller debuted their son Wylie who was born on December 12 Photo: Getty Images
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Model Chanel Iman is hitting the screen in the movie 'Dope' that was shown at Sundance. Photo: Getty Images
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Ryan Reynolds hit the festival without wife Blake Lively. Photo: Getty Images
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Eli Roth who also stars in 'Knock Knock' made his way to Park City. Photo: Getty Images
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'Ten Thousand Saints' star Emile Hirsch hung with Hailee Steinfeld at the fest. Photo: Getty Images
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Rashida Jones debuted 'Celeste and Jesse Forever' that also stars Andy Samberg. Photo: Getty Images
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Trudie Styler sported an animal print coat while out and about. Photo: Getty Images
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Danny Masterson checked out the goods at the Eddie Bauer house. Photo: Getty Images
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Jeffrey Tambor stayed warm while promoting his movie 'D Train.' Photo: Getty Images
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Ralph Fiennes posed for his portrait. Photo: Getty Images
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'Transparent' star Jeffrey Tambor has some fun at Kari Feinstein’s Sundance Style Lounge presented by Aruba. Photo: Wireimage
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Alexander Skarsgard, Bel Powley, Marielle Heller and Kristen Wiig took a group shot on 'The Diary of a Teenage Girl' carpet. Photo: Getty Images
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Brody Jenner, who deejayed the after-party, made his way to some yummy food at the Chefdance dinner series. Photo: Courtesy of ChefDance
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Kellan Lutz had a bear of a time at the TR Suites while posing with the Moose Knuckles Canada bear. Photo: Alex Wyman AP/Invision
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Cobie Smulders left her mark at Rock & Reilly's during the festival.
Photo Credit: Michael Jacobson