Directors and actors aren't the only people needed to make a movie. You have the unsung heroes of the grip and electric department, whose job it is to set up complicated lighting schemes and heavy rigs. It's often a thankless job that requires being on set for long days without very much idle time. That's why we have Martin Torner, union grip for movies such as Iron Man 2 and Thor, to illuminate this side of the industry with on-set horror stories and what is required to get into gripping.