Continuing my conspiracy theory trend this week (not something I tried for, its just sometimes happens), I came across an esoteric analysis of the new Transformers movie.
The actual conspiracy theory aspect of the article doesn't really interest me, and quite frankly I think the author is giving Michael Bay and other Transformers creators way more credit than deserved as far as subtext to the film. However, it does illustrate how people can and do find additional meanings within media, regardless whether they were intended.
I will also say that Transformers does make use of widely held human imagery and belief: that something greater than us is out there (whether on a supernatural plane or another planet), and that often the conflicts among those greater things impacts life on earth. It also represents our seeking for what is out there, as well as the awesome power that can come with revelation. That's one of the reasons why these stories - even when written with mediocre skill - continue to be so appealing. We identify with the concept even if we don't believe in it in any sort of literal sense. Of course, giant robots beating the snot out of each other wins a lot of fans too.