For a while now, we've been hearing about Brad Bird's super secret Disney project, and still we have very few details to go on. We do know that it will be some sort of sci-fi film, and that Damon Lindelof ('Prometheus') will be co-writing the script. Last week, we learned that George Clooney had committed to playing the lead in the movie, which for a long time was operating under the working titl…