Directed by: John Carpenter
Starring: Keith David, Meg Foster, George 'Buck' Flower, Roddy Piper
Visible crew/equipment: When Nada is escaping with Holly, you can see the reflection of the film crew on the car. (00:44:15)
Visible crew/equipment: After Nada opens the box and looks at the shades, if you look carefully, you can see the filming equipment reflected in the lenses.
Continuity mistake: In the big fight scene, Roddy Piper and Keith David are wrestling and struggling about and land so the black guy's pants are getting soaking wet. In the very next shot as the fight continues, his pants are dry. (00:58:55)
Trivia: Notice that in the television station the SWAT team members use radios that look exactly like PKE meters from "Ghostbusters".
Question: How does wearing the sunglasses allow the wearer to hear the speakers broadcasting the "sleep" command?
Answer: It affects the brain waves. Wearing those glasses disrupts the visual and audio signals.