02/09/2012 AT 05:45 AM EST
settled in for a night of laughter and lively conversation at the Chateau Marmont with some friends. The actress
and a girlfriend showed up first, and they grabbed a table and pulled out their phones to share pictures with each other. Soon, two other friends joined them. Dunst ordered a martini and was smiling and chatting with her friends. According to an onlooker, she looked really happy, leading the conversation and keeping the vibe easy and fun.