Girls behaving badly have never looked this good! Kirsten Dunst, Isla Fisher and Lizzie Caplan are ready to get the party started in the upcoming film adaptation of Leslye Headland's off-Broadway hit Bachelorette. The new trailer follows the fab ladies who have come together in a lavish hotel on the eve of their friend's (Rebel Wilson) wedding. The girls however have always disliked the bride-to-be, who they've known since high school, and spend their drug and booze-fueled night ridiculing her, while partying with a pair of guys (played by Adam Scott and James Marsden) they meet outside the hotel. Tony nominee Andrew Rannells even shows up as a stripper dressed as a police officer! Will they get the bride to the church on time? Do they even care? Click below to get excited about the big-screen debut of Bachelorette, then catch the movie in theaters on September 7.