A brief shot of aeroplane landing in Seoul showed Japan Airlines A340-300. This four-engined aeroplane wasn't launched until 1991 and entered into the commercial service in 1993. Japan Air Lines livery would have red and blue cheat lines which were eliminated from 2004 redesign.
The computer print-out of passenger manifest showed the modern typefaces in different font style and size as if printed from the inkjet or laser printer. Neither were available in 1980. The technology in 1980 would be typewriter font in one style and size along with characteristic appearance of ink ribbons as if printed from telex machines.
The German passport contains the colour photo with face directly toward the camera. The German requirments were that the photo be in black and white, that the bearer turns his head slightly away from the camera, and that the ear be visible.
The photo did not show either metal riveted rings or crimped edges. Gluing the photo to the passport wasn't allowed.