Episode I was racist with alien stand-ins for offensive stereotypes of black (Jar-Jar), Jewish (Wazoo...Wato..flying greedy guy with big nose) and Chinesse (Trade Federation).
Episode II and III suffer from the fact that the actors of Padme and Anakin cannot sell the chemistry and romance, their entire body language speaks something completely different from what their dialogues says, making scenes with them very creepy.
Then people don't know there sterotypes. Jar Jar was jamican not black. The accent says it all.