According to [this site](http://duchessofkalevala.webs.com/behindthescenes.htm), SW:TCW supervising director Dave Filoni says it was complete coincidence. Although he admits that it's a pretty odd one.

> **On Moulin Rouge References**  

> **Filoni:** *It was the funniest thing... **I had no idea that people drew a connection between the Ewan McGregor is Obi-Wan Kenobi [thing]
> and the woman being named Satine.** I didn't realize that at all. I
> called Henry Gilroy, who named Satine, and asked him, "Hey, were you
> aware of this?" And he said no, that he didn't really think about it.
> And I was like, "My gosh, do you know what people are saying all over
> the place about this trailer?" It had nothing to do with that. I guess
> it's just synergy? I don't know. It's very bizarre. **I still wanna
> question Gilroy about that, because I'm like, "Come on, really? I
> mean, out of all the names, really?" It's pretty weird, I'll give you
> that.***