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Kristen Stewart upped the glam factor last night for a special New York screening of her film On the Road. Alongside co-star Garrett Hedlund, the actress went with an LBD to promote the movie, walking the red carpet in A.L.C.‘s Booth dress ($1,296 on barneys.com). The IFC production (in theaters December 21) is based on the iconic novel by Jack Kerouac, and tells the story of a wandering writer who takes to the open road on a journey to find himself, encountering some interesting characters along the way.

Plus, see who else partied last night!

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