Its a movie about effects. The actual story has his seduction described in great detail. And he didn't turn because he wasn't made a Jedi Master, he turned because he didn't care about being a Jedi. He was ambitious and decided, as the chosen one, he should be able to do anything. If a Sith was able to keep people from dying, he should be able to as well. After his mother died, he vowed to become all powerful so that he would never lose another woman in his life. When Padme's life was in jeopardy, he decided to take another route to save her. The Dark Side isn't stronger, its easier and Anakin needed a quick way to gain power. Once he devoted himself to the dark side, he made a commitment to never look back. He wasn't tasked with killing the children, that was his personal choice. Plus, you factor in that he was born a slave and traded that life simply to be bound/restricted by more rules, he couldn't help but feel contained and look for an outlet. He disobeyed all the rules without regard even to go as far as getting married, something that would expel him as a Jedi. He didn't care about the order, it only imprisoned him. When he kills Dooku, he feels freedom for the first time in his life... and he doesn't look back.

The explanation to his falling is shown, you simply have to pay attention.

AND in a world where the force binds and controls all life-forms and is powerful enough to 'will' life, its very plausible that in the same fictional galaxy, the force can will life away.. Explaining her death. Or, because the force binds and controls every living thing, having her give birth to two powerful force sensitive offsprings of the chosen one may have sucked out her already small amount of midichlorians, passing them into the children. Which again, causes her to lose the will to live without the force there to sustain life.


TL;DR Empire Strikes back is awesome.