Real World Force Field: Check out this video from Fox News. It depicts a force field which causes rockets and other attacking weapons to explode before they reach its target. It seems that it’s all done with computers. Something like a laser beam shoots onto the tip of an incoming projectile, causing it to explode.

It’s very interesting technology, but I think “force field” is a misnomer when used to describe it. There isn’t really any force field that is passively destroying incoming projectiles. This involves active technology which targets projectiles with laser beams.