Thor: The Dark World B-Roll Footage Released

Marvel Studios has released a bumper 15 minutes of "B-roll" footage forThor: The Dark World.

The fascinating behind-the-scenes footage shows Chris Hemsworth, Tom Hiddleston, Natalie Portman and director Alan Taylor on location in Iceland and on set in London.

All the shots have been left "raw", with none of the post-production effects which will be seen in the final movie.

And much of the film set apparatus and members of the crew are visible in the footage - which just features a low-key soundtrack and the normal on-set calls and noises.

The movie will have its world premiere in London on 22 October, before going on general release on 30 October.

A clip from the film was released earlier this month.