Chris Hemsworth reveals that Thor is in a bit of trouble with Jane, since he didn't let her know he was on Earth during Marvel's The Avengers.
"Thor still has lot of explaining to do, and a lot of making up. Even demigods end up in the doghouse, mate. So none of us is safe."
Kevin Feige said that the tables will be turned, so to speak, with Jane Foster being brought to Asgard for her safety.
"So while Thor was a fish out of water on Earth in the first two films (Thor and Marvel's The Avengers), this time Jane is very much a fish out of water in Asgard."
Chris Hemsworth spoke about the story coming off as "hokey," in dealing with a fantasy world like Asgard.
"We were worried about coming across as hokey or whatever. If there is anyone who can pull off a fantastical world like Asgard with a great amount of integrity, it is Alan Taylor, as we've seen in Game of Thrones."
Kevin Feige also teased the love triangle between Thor, Jane Foster and Jaimie Alexander's Sif.
"It's superhero action, but it's the familiar territory of a love triangle where the parents think your girlfriend is wrong for you. That's how the best of these movies work."
In this sequel, Thor does battle with Malekith the Accursed (Christopher Eccleston). Chris Hemsworth spoke about how he wanted Thor to have an elevated battle style in this sequel.
"I really wanted to ramp up his skill set in battle. He's not just this Viking throwing the hammer. Here he's more demigod with dynamic moves we haven't seen before."
The actor also added that Thor must seek help from his villainous brother Loki, played by Tom Hiddleston.
"Needing Loki's help turns everything on its head," says Hemsworth. "And it allows us to explore the underlying complexities of their relationship. It really ends up being a kind of chess match."
Kevin Feige revealed that the villainous nature of Loki will still be firmly in place.
"Tom has built and shaped one of the best movie villains in years with many, many layers. It will be very difficult for Loki to lose the villain status. He has that firmly in hand."
Check back tomorrow when the first trailer for Thor: The Dark World debuts.
Thor: The Dark World was released November 8th, 2013 and stars Chris Hemsworth, Natalie Portman, Tom Hiddleston, Anthony Hopkins, Christopher Eccleston, Jaimie Alexander, Zachary Levi, Ray Stevenson. The film is directed by Alan Taylor.