Jake Dickey, right, teaches Salt Lake Community College students how to use the latest technological advancement in Hollywood, called the virtual production stage. Jake Dickey, right, teaches Salt Lake Community College students how to use the latest technological advancement in Hollywood, called the virtual production stage. (Salt Lake Community College)

SALT LAKE CITY — Imagine as a director you want to film a scene that takes place at the Great Wall of China. In the past, you would have to send the crew, the actors, and hair and makeup people t…