“The imaging layers contain sub-micron sized grains of silver-halide crystals that act as the photon detectors. These crystals are the heart of photographic film. They undergo a photochemical reaction when they are exposed to various forms of electromagnetic radiation — light. In addition to visible light, the silver-halide grains can be sensitized to infrared radiation.” http://electronics.howstuffworks.com/film3.htmRead more "How celluloid film works"
THE 5 MOST GRUELING STAR WARS VISUAL EFFECTS http://www.starwars.com/news/the-5-most-grueling-star-wars-visual-effectsRead more "Star Wars Visual Effects"
How Tech Has Shaped Film Making: The Film vs. Digital Debate Is Put to Rest https://www.wired.com/insights/2015/01/how-tech-shaped-film-making/Read more "Pros of Technology in Film"