3000 temple points. So far I've only seen two temples that even has a chance to be done, regardless of spending.
Experience and movie points.
And both those are pretty easy. Were there others? Are there others?
I guess I'm looking more for a history lesson than a "what the hell are the developers thinking" about this success (as the game calls it) or achievement (as is commonly known) or a-cheese-ment (as I call them, though it doesn't stop me from trying them).