London was perfectly safe ...
... when it looked like a ship was tearing it apart.
A lot of the film's dark scenes ...
... were actually filmed in blue, sunny skies.
While Thor's home of Asgard may have looked beautiful on screen ...
... it was a lot of blue screen.
When a blue screen wasn't needed ...
... other scenes were pre-visualized through animation first.
A fight scene with Thor ...
… was pre-visualized on computers.
Here's how rainbow bridge Bifröst seen in both films comes to life.
While it looked like Thor was surrounded in rubble …
... it was really just one car and a blue screen.
In fact, that entire car scene...
... was no more than some cars ...
... and added blue screens.
When Loki was having his giant fight with Thor in another world ...
... it was just the dueling brothers, dirt, and a big green backdrop.
While it looks like Thor is getting tossed around ...
... he's actually safely harnessed.
We can’t decide whether villain Malekith (Christopher Eccleston) looks more menacing in CGI …
And while Malekith's entire legion of henchmen may have looked really ominous ...
... they don't look half as scary without the dark smoke and towering ship behind them.
"Thor: The Dark World" was one of last year's big hits.
