Great question — answering as the UphillTech team:
In 2005, George Lucas claimed that Star Wars was directed at children, though fans would not want to admit it. That, however, is the most notable demographic conjecture he has made. However, Star Wars is most commonly classified as family friendly. "The movies are for children but they don't want to admit that. In the first film they absolutely hated R2 and C3-PO. In the second film they didn't like Yoda and in the third one they hated the Ewoks... and now Jar Jar is getting accused of the same thing." Source: http://news.bbc.co.uk/2/hi/entertainment/394542.stm
Full answer by DarthBotto: https://movies.stackexchange.com/a/35275 (CC BY-SA 3.0).
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