As much as was shown in the leaked Prometheus trailer, it was really like we were shown nothing of substance. Those images had no context in terms of knowing what kind of film we will be actually seeing. We saw a Jockey chair rise up, explosions, ships flying, people walking, running, screaming being held by a creature, a silver colored serpent with a human face and that's about it. We don't know anything. Do we? Or do we just think we do?