Lena Dunham, Jemima Kirke, Zosia Mamet, and Allison Williams in 'Girls' (Photo: Jessica Miglio/HBO)Girls will kick off its third season on January 12, 2014 with back-to-back new episodes beginning at 10pm. And to put you in the mood for more of Hannah and her friends, HBO’s released this new minute and a half trailer for the upcoming season. Led by series creator Lena Dunham, the cast of season three includes Jemima Kirke, Zosia Mamet, Allison Williams, Adam Driver, and Alex Karpovsky.