This past weekend was a major one for the TV and film world. San Diego Comic-Con ran for days at a time, providing new footage and trailers from a variety of highly anticipated projects like The Walking Dead and the Marvel Cinematic Universe. The latter debuted a handful of new information, but one of the most thrilling was the new trailer for Thor: Ragnarok. Thor's threequel looks like a game changer for the franchise, especially regarding the limitations of the title character's superpowers. One particularly popular shot from the trailer features Loki and Thor shooting up some enemies with some futuristic guns, and now director Taika Waititi has explained the reasoning for this choice: Thor needs to use whatever he can without Mjolnir.