This new featurette for Thor: The Dark World focuses on Loki, as played with a great deal of delight, it seems, by Tom Hiddleston.
Director Alan Taylor sums up the way in which the dynamic between Thor and Loki works pretty well with the line, "…typical brothers, but heightened". It's simple and relatable for many people. That's one of the reasons it works so well.
Thor: The Dark World is out in the UK on the 30th of October and America on the 8th of November.