The Horror Challenge,
Wonderful use of lightning.
I must admit that lightning is definitely not something that I pay attention on. However, the one movie that I did noticed the lightning was in 28 Days Later, I have no idea why, but it took my attention. It's in most of the post-apocalyps movies that the lightning is fascinating, because it makes the world look more abandoned when the lightning isn't bright. I like that effect. Another movie that came to my mind is Sin City, but obviously that's not a horror.