Chris Hemsworth in "Thor: The Dark World."
Returning alongside star Chris Hemsworth (left) in “Thor: The Dark World” is the hero's father, King Odin (Anthony Hopkins).
“Thor: The Dark World” stars Kat Dennings (left) and Natalie Portman as the title character's love interest.
Chris Hemsworth (right) stars as the title character in “Thor: The Dark World,” which also stars Tom Hiddleston as Thor's conflicted brother, Loki.
The Marvel superhero universe is getting awfully crowded these days, so when the all-stars from “The Avengers” split up for individual adventures such as “Thor: The Dark World,” we just have to take it on faith that the likes of Iron Man, the Hulk and …