Complex sentence: The original draft for the film started with a view of the Tok'ra city, but Brad Wright eventually decided that the film should start in Stargate Command (SGC) to show what SG-1 represented.
Split into simpler sentences: The original draft for the film started with a view of the Tok'ra city. But Brad Wright eventually decided that the film should start in Stargate Command (SGC) to show what SG-1 represented.