The Dark, "Deadly" Prank William Shatner Pulled While Filming a Classic Twilight Zone Episode

• The Twilight Zone is famous for its twist endings, but Richard Donner, who directed the iconic episode “Nightmare at 20,000 Feet,” was relieved to discover a real-life twist when star William Shatner terrified him with a prank on the set. “Nightmare at 20,000 Feet,” the Season 5 episode featuring the Star Trek lead as a businessman who discovers a terrifying gremlin ripping apart the wing of an airplane he’s on, first aired in 1963. As Donner recounted in an interview he conducted with the Archi