On the evening of July 23, 1982, “Animal House” director John Landis was filming a tricky nighttime helicopter scene for “Twilight Zone: The Movie.” The wide-open spaces of Indian Dunes, now part of Santa Clarita, Calif., were standing in for Vietnam, and the scene called for soldiers in a helicopter to pursue actor Vic Morrow, who was carrying two children. When the copter made a turn just above a large mortar round, the special effect explosive detonated, bringing down the helicopter and killing Morrow along with 7-year-old Myca Dinh Le and 6-year-old Renee Shin-Yi Chen.

The devastating accident shook Hollywood, and several months later, Variety announced that “Landis, pilot, others face ‘Twilight’ accident charges.” Landis and other “Twilight Zone” movie crew members were charged with involuntary manslaughter — the same charges “Rust” actor and producer Alec Baldwin and “Midnight Rider” director Randall Miller faced for their roles in on-set deaths.

Five years later,...