 Tedi Sarafian (qv) wrote a script for the movie, but since his  ideas would have resulted in the movie costing more than $200  million (a scene featured a Boeing crashing in downtown LA and  exploding half of the city) his script was refused. Some of his  ideas were used, though, (the evil Terminator is a woman, Sarah  Connor doesnt appear), so he earned a "story" credit.