Yesterday’s trailer for Thor: Ragnarok wasn’t just a ripping good use of Led Zeppelin’s Immigrant song. It was also packed to the rafters with nods and clues to the film. The kind of clues that only an obsessive freak would spend hours rewatching a two minute trailer for so that he could discover all of them. Well as Odin is my witness, I am that obsessive freak. Here’s everything that we discovered so far in the first trailer, so get ready to Ragnarok and roll.