Something standing in the steam in Noomi featurette?

So we all know there is a scene in which Noomi is running back to the Prometheus and looking back over her shoulder. There is also that scene in which steam shoots up through the ground. While this scene is most likely pressure being released or something when the juggernaut hangar bay is opening, some people have wondered whether the steam scene is unrelated to the hangar opening and if something actually comes out of that hole with the steam. So, it's at least possible that she is running from whatever comes out of that hole. Anyway, I was watching the new Noomi featurette (http://www.moj-film.hr/novosti/pregled/filmovi-i-glumci/prometej-prometheus-upoznajte-elizabeth-shaw-noomi-rapace/) and at 2:33 I noticed that it sorta looks like something is standing in the steam behind her as she runs away. Am I imagining this?