The richness and complexity of the Engineer dialect is one of the reasons I love Prometheus. It adds so much to the lore of the Alien universe and is a completely original element (which is damn hard to do in sci-fi these days). It has all the makings of a future classic science fiction film. Based on Proto-Indo-European, which is a hypothesised language that serves as a precursor to most dialects spoken today.
Translation for those curious:
DAVID: Etaɪ gwentm pərəthú htárasjasənt. Hja dəvə sthātá tava krédastənt. // These people have come here from Earth. They believe that you invited them.
ENGINEER: Mā vulɪt teva? Vār-ghud nōmnāja! // What does he want of you? Name his wish!
DAVID: Ida hmanəm aɪ kja namṛtúh-zdε taha. Gʷɪvah-pjorn’-ɪtthám sas-dātṛ kredah. // This man is here because he does not wish to die. He believes you can give him more life.
ENGINEER: Wā-norəm idema ju–gad-ke garasté. // You would not be a man if you did not age.
There was a wealth of promises about what this movie was supposed to be. After 30+ years, Ridley Scott was finally returning to the franchise to finally reveal the origins of the Space Jockey and the Xenomorphs. Then, for some reason, he and screenwriters Jon Spaihts & Damon Lindelof swerved and decided to lessen its connective tissues to ALIEN, making this more of a standalone film set in the same universe. The themes are very big picture existential and while they aren't necessarily groundbreaking, they make for an interesting sci-fi/horror film.