Regarding the other idea, about the Naboo invasion being enhanced, or showing the suffering of the Naboo people, the easiest way I can think of getting this idea across would be to add audio of off-screen skirmishes, or the sounds of people crying/wailing/etc.

I know snooker had added plumes of smoke in a night establishing shot of Theed, implying that the Trade Federation was quelling some resistance or rioting that was going on in the city.

You could have Naboo trying to fight back at the beginning of the invasion, but I feel like there really isn’t any footage that’s usable. I feel like video game footage would stick out. And I’ve seen people add explosions to the Theed occupation sequence, but I’ve never seen a version where the new effects didn’t look obvious.