DAWN OF THE PLANET OF THE APES (2014): Mistrusted Human vs. Civilized Apes

First question: why “Dawn”? I think they choose “dawn” not because it is a more poetic noun than “start” or “beginning” or any other nouns with similar meaning. “Dawn” implies timing rather than activity; something that is perfect to match “rise”. The planet of the intelligent apes has already risen (remember how the intelligent apes claimed their freedom in a spectacular and climactic RISE OF THE PLANET OF THE APES), and DAWN OF THE PLANET OF THE APES implies they begin to do a big thing—either in this movie or the next one.