When I saw Avatar in the theater in 2009, it was a family outing while visiting relatives. I thought it was an Avatar: The Last Airbender movie and wondered why everyone had chosen it. I knew very little about Airbender (still don't), but must have seen previews or something for the actual Airbender movie that came out in July the next year, while I somehow missed seeing anything about Avatar. It was maybe five minutes into the movie when I realized this wasn't a preview for some sci-fi flick, it was the actual movie I was there to see.