After an disastrous assault on Jotunheim, the home of the Frost Giants, Thor (Chris Hemsworth) is banished by Odin (Anthony Hopkins) for his recklessness. Exiled to Earth while his brother Loki (Tom Hiddleston) stages a coup, Thor’s only chance of returning to Asgard is to prove himself worthy to wield the enchanted hammer Mjölnir which remains immovably embedded in a New Mexico crater. My first…