Chris Hemsworth returns as the Marvel Comics superhero in this bloated sequel to Kenneth Branagh’s half-assed Shakespearean space opera Thor (2011). The story is ridiculously complicated: an ancient race of evil aliens seek a powerful energy source that’s somehow found its way into the body of Thor’s love interest (Natalie Portman) and must be destroyed lest the entire universe collapse onto itself and destroy all life everywhere (or something). Alan Taylor directed.