So I've been thinking about the role the engineers will play in this movie, and I've been reading about there possibly being multiple factions, and a possible Engineer riot in the movie. What if, instead of
Spoiler
David destroying the engineers by releasing the black goo
, some angry engineers start a riot, and somehow unleash the black goo onto the planet themselves? They may be angry at the others for creating life across the galaxies. This would be more interesting in my idea, and provide more insight into the engineers.