Thor's 'Unabridged' Descent To Earth In 'Avengers' Explained!

With "Marvel's The Avengers" still a few days away from hitting theaters here in the U.S., there are still plenty of unanswered questions about the plot looming on the horizon. We're not talking about spoiler-heavy territory, so much as general "How" and "Why" quandaries that pertain to specific characters. For example, how the heck does Thor get back to earth? We all saw what happened to the Bifrost at the end of the movie and yet he's clearly back in action on our turf.

When I caught up with cast members Chris Hemsworth and Tom Hiddleston recently, I asked the two actors to try and explain Thor's impressive descent in as technical and nerdy terms possible, including one of Loki's lines of dialogue, which Hiddleston had no problem recalling on the spot.

"Loki says, 'How much dark energy did the All-father have to muster to conjure you here?' Hiddleston recited. "The Bifrost is still down, he can’t just be riding down the rainbow bridge, Heimdall [is gone], it’s all changed since the end of 'Thor' so it’s obviously cost Odin a significant amount to get there," he explained. "I guess he’s been sent down by Odin to go and deal with this crazy cat that is his brother."

Hemsworth added that although it's not explained in great detail, Thor only has a window of time in which to retrieve his brother.

"It’s not really explained, but it’s assumed that he can only be there for a window of time," Hemsworth said. "Odin has had to call in some favors from around the realm. And he turns up. That or the bus," he joked.

What do you think of the actors' explanations? Tell us in the comments or on Twitter!