It won't surprise anyone that Thor: The Dark World finally finds its groove when Loki enters the film in earnest. Tom Hiddleston's smirking quips provide Chris Hemsworth with exactly the foil he needs, and having Thor and Loki awkwardly team up makes the film less of a collection of Dungeons & Dragons shenanigans and more of an actual narrative—The Dark World works best when it's a buddy movie about two buddies who don't trust each other. And it's when Loki comes in that everything else settles into place: balancing goofy humor and goofier action, The Dark World gets fun. So much fun, in fact, that the overall film is pretty great, despite its rocky start. by Erik Henriksen