The shooting death of a cinematographer on the set of the set of the Alec Baldwin movie “Rust” is a reminder of the dangers that can exist on film and television sets. As authorities investigate why a crew member handed Baldwin a loaded gun instead of one safe to use, industry leaders will look for ways to avoid similar tragedies.On-set fatalities have led to safety reforms in the past. Here are some of the productions that experienced industry-altering accidents: