The following featurette showing how they created the football stadium explosion in Christopher Nolan'sThe Dark Knight Rises is actually quite interesting, particularly considering how weird it lookst to watch a stuntman fall into a hole and then see it again with the visual effects added in and how much more realistic it actually looks.
The featurette will be included on the upcoming The Dark Knight Rises Blu-ray release on December 4. It is available in part of a trilogy collection, Blu-ray or DVD. Click any of those links to preorder a copy.
Check out the video below.