Follow along with the video below to see how to install our site as a web app on your home screen.
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Light the hall with a single bright fixture near the camera, and gel it dark blue (use a couple sheets of Full CTB).
The scene will be properly lit (so you can see the actors face and surroundings and won't have a problem with noise), yet appear dark as if only moonlight is coming through a window. The flashlight will be piercing white in contrast to the blue.
you should check out the scene from I am legend. Good example there.
http://www.youtube.com/watch?v=o7CC0kbGj6s
at 1:45. You can see based on his eye light there is a small spot probably being follow spotted on him.
The old X-Files trick was to conceal bounce boards around the set. The actors were basically choreographed to hit the boards with their flashlights at a certain position, illuminating their faces with the bounced light. Mind you, they were using those huge, mega-powerful halogen flashlights ;-)