Everything You Need to Know to Become a Film-Industry Insider Have you ever wondered what the difference is between a gaffer and a grip? Or what makes the best boy so great? In Strike the Baby and Kill the Blonde,* Dave Knox, a top camera operator and longtime veteran of the film industry, gives you the inside story on the lingo and slang heard on the set. This is an A-to-Z guide to making a movie: the equipment, the crew, and the sometimes hilarious terminology—everything you need to know to sound like a seasoned pro. * Remove the small spotlight from the set and switch off the two-kilowatt quartz light.