Were there any safety problems with shooting firefights on the main Initiative set.

That was very easy. It�s such a large space and you�re creating a lot of depth using longer lenses and stacking up a lot of action.

So you�ve got large explosions happening in the background, but in reality it�s quite far away from any actors - so in a space like that it�s actually very safe.

Obviously it looks really tremendous on screen, but it�s actually just some propane mortars going off in the background and it�s relatively safe.