I'm shooting a short film that takes place in an alleyway at night. I wanted to do both wide shots to establish the scene and closer shots of the characters to tell the story. I'm concerned about lighting the establishing shots without having to light up the entire alley way or shoot at a very low resolution. I want it to look dark and gritty, but still want a decent resolution out of it. Shooting digital, probably with an XL-2 or maybe even HD. On a very low budget too, so that is a factor. Any advice?