Original script vs. Jonathan Hensleigh's script.

There’s an interview with producer Jerry Bruckheimer in the blu-ray where he mentions that different writers were brought in to work on the screenplay. The only specific things he says is that the original bad guys were just bad guys, instead of an honourable general who was basically bluffing and who had no intention of killing tens of thousands, and that it was Sean Connery’s idea to make his character a former British spy (no idea who he was supposed to be originally).