In pictures: Dirty War: Special effects
Fire and debris

The Liverpool Street area and factory shots were combined and layers of specially-shot smoke were mixed over the top.

The graphics team then added falling debris using a 3D computer animation system.

Some debris was filmed on location but it was hard to have enough of this raining down for the duration of the scene.

Click below for more images
1 2 3 4 5 6 7 8