Jamie Chung is used to playing strong characters in action-heavy movies; after all, her resume includes Sucker Punch and Sin City 2: A Dame to Kill For. Still, her acting skills were put to an all-new test when she signed on to voice the brainy and heroic Go Go in Big Hero 6. Watch our chat with the star to hear more about the most awkward part of the job and how wedding planning with her fiancé, Bryan Greenberg, is coming along. Big Hero 6 is in theaters now.