Garp said:
Spoilers follow.
Oh my gosh. Looking at that, for the first time, I think I've found a way to logically connect the old movies with the new ones (contradicting Cornelius' testimony in Escape, of course, but I think it's fair to contradict that, since that came from the Sacred Scrolls, which we all know weren't worth their parchment).
You could logically place the movies in this order:
Rise of the Planet of the Apes
Dawn of the Planet of the Apes
(far future)
Planet of the Apes (1968)
Beneath the Planet of the Apes
(following our protagonists into an alternate timeline)
Escape from the Planet of the Apes
Conquest of the Planet of the Apes
Battle for the Planet of the Apes.
It could be surmised that the new movies are the original fall of the planet, and that Escape/Conquest/Battle are the alternate timeline spawned from the actions of Cornelius and Zira. Hmm...
Though this contradicts the whole reverse time travel theory of Planet of the Apes (2001), you could explain that film by saying that Leo left before the events of either Rise or Escape and returned after. Hmm...