The countdown to Halloween is on! That means it's time to plan your costume this year, and since we know the best costumes are pop-culture-inspired costumes, we have lots of timely ideas. We showed you the best women's costumes for 2015, and now it's time for costumes for dudes. From Mad Max to The Avengers and Game of Thrones, here are the most newly relevant costumes from this year's movies and TV.