Star wars episode two thoughts

[Lord Magus]

Actually, according to the various errata (both fiction and game-based) the Stormtroopers of the Episodes 4+ Empire are in fact NOT clones, but elite indoctrinated ground troops drawn from the fanatic and loyal youth of the Empire. According to these sources Palpatine established something similar to a self-sustaining "Hitler youth" PR/club/organization that's sole purpose was to promote via propaganda and indoctrination a base of young Imperial citizen's whose only loyalties lay not with the Empire, but with Palpatine himself. It is from this base that most Stormtroopers and many Naval officers were drawn.
And yes, according to the same errata cloning is in fact outlawed in the Empire, Palpatine ceratinly didn't want someone using his own tricks against him.

Of course, the one single biggest/truest piece of Star Wars universe erratta is that the movies ALWAYS supersede the fiction and game systems. But unless they make a point of the Stormtroopers being all clones in Episode 3, you can work off the basic assumption that prior fiction is still legitimate.