Ok- saw it last night. A few thoughts:
The Charleze Theron character makes a comment about being 'half a billion miles from Earth'. That's between Mars and Saturn.
If the squid thingy is impregnated in the lady, it would be contained in her uterus, not just flopping around in her abdomen for the tongs to lift out after cutting her tummy open.
The Engineer guy is very malicious towards humans. A bit of a stretch but could it be part of why the subsequent Aliens are so hostile?
Last edited by HurtCow; 06-21-2012 at 02:04 PM.