The hints and foreshadowing we now see in TPM and AOTC

After watching The Revenge of the Sith what are some of the hints we can now see in retrospect that we were given in the first 2 prequels. I'll give an obvious one first...

Anakins obsession with finding out a way to keep people from dying sounded like another immature rant in AOTC but became a major theme in ROTS and the look on Padme's face shows the first sign of the major differences in the characters and there major beliefs.