12 O'Clock, 6 O'Clock, 12:30???
There seemed to be errors when writing the script for this segment - the air traffic controller told the 747 that the twin-engine was at their 12 (mean he's ahead), then later tells the pilot that he's following the 747 - meaning he'd be at the 747's 6 O'Clock, but then tells the 747 just before the accident that he's at their 12:30, so he somehow managed to fly over or under the 747 to go from behind behind them to flying towards them...
This film seemed to set a record for the number of errors - hard to understand why but it was a low-budget film so perhaps that's the reason, however the 1970 version was known to be careful when making everything appear factual, so guess it shows the changes in Hollywood from 1969 to 1974...
Glades2