Saw Prometheus again

Either the movie studio sent out a new release updating stuff that people were complaining about or it's better the second time. There are about 3 scenes I don't remember from the first time I saw it that make things make more sense. Also, it seemed that a couple of scenes were slowed down/sped up to make the scene smoother. Anybody else notice this? Some things that stood out the second time: The 2001 homages seem to stick out a lot more. Especially with Old Man Weyland But maybe I was paying more attention because they were pointed out here on the board. The decapitated Engineer didn't trip and fall under the door as it was slamming down like I thought the first time. The Engineer collapsed and fell, just like Holloway when he was infected. The other Engineers were running away from him because he was infected. So does that mean the black goo only works on something that's alive? It obviously doesn't work on androids. The 'new skin' on the severed head they were examining tells me that the black goo acts differently when it's ingested than when it gets on someone's skin. The piled up Engineers were attacked. I didn't realize that the first time. I thought they were all chestbursted. But they had holes in their heads, too. Like they were attacked by Xenomorphs.