Ian, the Star Wars movies don't contract each other.
Oh yes they do. The storm troopers being clones thing is practically a contradiction since they clearly have different voices and such in the original films so it's very unlikely that that was the original plan. But other non-clone soldiers could have been added to their ranks. It suggests more the idea of Lucas pulling stuff out of his ass and not really giving much thought to how that would seem out of place with the "later" episodes. And then there is stuff like midiclorians which are never mentioned ever the entire time that either Obi-Wan or Yoda are training Luke. It is also never once mentioned by Vader or the Emperor and it seems like something really crucial and important when discussing the Force and training Jedi. But let's make the major assumption that somehow EVERY Jedi in the later episodes just neglected to mention it. Again this is a not technically a full contradiction but just a very likely one.
But the real outright contradiction is that in Return of the Jedi Luke asks Leia about their mother because he never knew her and she mentions memories she had saying that her mom died when she was very young. In Episode III their mother dies about 30 seconds after giving birth to them. Leia would clearly have no more memory of their mother than Luke would. So is Leia full of ****? Are these false memories? Was she told her whole life that someone else was her biological mother and was remembering that woman instead? Is she some sort of savant who can remember her day of birth? Or is it more likely that George Lucas is an idiot who didn't bother to watch his old films before writing the scripts for films that are supposed to take place before them?
So I've got two scenarios that certainly feel like contradictions but can be explained away with incredibly flimsy speculation and one that is so blatant that explaining it away is about on par with "a wizard did it". The thing is someone who is actually planning this stuff out with any sort of due diligence wouldn't have planned it that way on purpose. If you were trying to do it right why would you come up with anything that requires such complicated logic to explain away what seems like a contradiction?
If Nintendo put any sort of real care into the Zelda timeline they wouldn't introduce stuff that makes us all go "huh?" You know why? Because we care and that's why we notice that sort of stuff so fast. If Nintendo cared they would notice it right away as well. They don't. They put Ganon in as the boss because that's their lazy go-to choice for a final boss. They pull the story out of their ass at the last minute because they just come up with some gameplay ideas they want and then try to shoehorn them in. They wanted an ocean in Wind Waker so they came up with some excuse for it. If you had some grand plan why would you put something in as complicated as a Waterworld-esque flood and not reference it at all in any of the previously made games that take place after it? And you also include evolution, something that takes MILLIONS of years, in a timeline that could at best take only thousands of years? All you would do is create a whole bunch of questions with really out-there explanations for them. If you gave a **** and planned things out you would never do that. That is the sort of thing that comes from someone who doesn't care and is just pulling things out of their ass without any thought or real planning. Live for today, come up with convoluted answers for the fans tomorrow.
I'm certain their is no timeline in Miyamoto or Aunoma's head and that they probably don't even have the existing games mapped out or documented. Or if they do some intern did it for them and they either never reference it or only do so when the game is nearly done just to make sure they can come up with some tacked on explanation. The timeline is too chaotic to be planned.
Clone troopers and storm troopers are different, I am not a hardcore fan but even I know that. After Palpatine became Emperor, he ended the clone program. Those initial clone troops did become storm troopers, but after that they used recruits. The absence of something doesn't mean it doesn't exist. Obi-Wan and Yoda don't seem like people who would get bogged down in explaining details of the Force, Qui-Gon does. Just because we didn't see it doesn't mean they couldn't have mentioned it, it would be like saying none of them ever use the bathroom just because we don't see them do it. So there is no contradiction there.
The second one is not really a contradiction, exactly. There are several possibilities (I am doing this by memory because I am not a big fan of the original trilogy, they are boring). Leia could have been trying to make Luke happy rather than say she remembers nothing either. Maybe Leia had the memories implanted. Maybe Lucas retconned it because Padme dying right after birth made for a better plot device. All are possible.
Someone at Nintendo (I don't remember if it was Iwata, Miyamoto, or someone else) said that they come up with gameplay first, then the story. I didn't say they had the whole Zelda thing planned out ahead of time. What I think they probably do it come up with the new game, then figure out how they can put it into the existing timeline. It's been a few years, but at one point they did give the exact timeline of the Zelda games that were out at that time. Fans have since then kept updating it based on official statements from Nintendo (like saying that Wind Waker takes place about 100 years after OOT). As for evolution, who is to say that it doesn't work differently in that universe? Magic exists, talking boats exist, etc. Or to quote Xena responding to Professor Frink, a wizard did it.