Factual error: When Thorn is outside of the Exchange talking to the Hatcher on the phone, he sees people coming for him. He tells him, "Hatcher, help me," climbs some steps, then drops the phone. It was just the handset of a phone without the cord to look futuristic. Anyway, the phone makes a ringing sound when it hits the ground as if an entire desktop phone had been dropped. Dropping the handset wouldn't make that sound since the bell is in the base unit. (01:02:19 - 01:28:33)
Continuity mistake: The doors to the suicide center are frosted opaque from the outside, but clear when seen from the inside. (01:10:10)
Continuity mistake: Shortly before Sol's death, Thorn rushes into the suicide center and talks to him from the control room above. When Sol pleads Thorn to listen, there's interference on the intercom. Now watch the control panel: The earphone cable on the left side dangles back and forth each time the "speaking permitted" sign flashes on and off, blatantly revealing the cheap trick they used to make the display flashing - they simply toggled the "on" and "off" frames. (01:17:30)
Revealing mistake: The sliding door to the bedroom in Simonson's apartment appears to be covered with a sheet of 'bubble wrap' in early scenes of the room.
Continuity mistake: When Thorn goes back to Simonson's apartment to see Shirl, he interrupts a party. Shirl is holding a drink which contains huge ice cubes, but right after the two of them go into the bedroom the ice is no longer in the drink. Way too fast to have melted.
