Most people in the helicopter industry have heard of Helinet Aviation Services, but for different reasons. Some people know this Southern California company as the aerial film operator behind dozens of Hollywood blockbusters, from Transformers to Die Hard. Others know it as a longstanding electronic news gathering (ENG) provider that, at one point, was one of the largest ENG operators in the world. Still others know it as the parent company of Helinet Technologies, a provider of microwave downlinking and other technology solutions that is quietly revolutionizing the airborne-law-enforcement industry.