I have my son hooked on Star Wars now (he turned 4 in September). Up until today, he had only seen the original trilogy. In fact, tonight while watching Ep3, my wife had asked me a question, and he answered - "In the real Star Wars, Darth Vader cut off Luke's arm and then told him 'I am your father'. The prequel trilogy really wasn't holding his attention today, but he gets wrapped up in the original trilogy and its hard to get his attention off of it when he's watching it. I think the answer to this question might depend on the age of the person you're introducing it to.