The "Forgetting" Topic/Misconception
I see a lot of people posting on here that they don't understand how Adelaide/Red could forget where they actually came from. (Underground Adelaide forgetting that she's from the surface and Above Ground Adelaide forgetting she's actually from the underground.)
I don't think either one of them forget where they came from.
Above Ground Adelaide was afraid that the original Adelaide was going to come back eventually and take everything she'd made for herself since escaping.
Underground Adelaide wanted to kill the above ground people because she could see their actions reflected in the clones underground and felt a kinship to them after growing up down there. And she wanted to do the hands across America because that's one of the last things she remembers.
The underground clones knew she was different after the ballet I'm pretty sure because it showed her autonomy.
I didn't see anywhere near as many "plotholes" as people are pointing out.
Someone asks how did the clones have children? What? They're tethered to the above ground people. They screw, they bear children.