Harrison Gantz

The special effects found in the original Star Trek looked futuristic on the screen but were surprisingly low-tech in real life. The automatic doors located around the ship, for example, were anything but automatic. They were actually opened by two film crew members pulling on a pulley and rope system–many of the bloopers from the show hinged on a film crew member day dreaming at their post and letting an actor walk right into the still closed doors.