Thor: The Dark World
While Thor isn't technically a TV show, they did a crossover episode with Agents of S.H.I.E.L.D. last year. Let's face it, who doesn't want to see Chris Hemsworth in his body armor? Dress up as Natalie Portman's character, Jane Foster, before she decided to give up her title as goddess and come back down to earth. Think Grecian dresses, lots of metal, and a sick headpiece. Bring a male friend dressed as Thor - just in case.
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