Factual error: When D.J. is attacked by Dr. Weir, he is grabbed by the throat and is squeezed until his windpipe is broken, shown by the way he was breathing (or struggling to). When Weir seizes him again and throws him against a support beam, he screams in a way impossible for someone who just had his windpipe crushed.
Factual error: When Justin is in the air lock and activates the outer door he freaks out as he sees the veins in his arms bulge and then he starts bleeding from his eyes and maybe his mouth too. This wouldn't happen. Movies get this wrong a lot. All that would happen is that he would lose gravity, he would be sucked out of the ship and unless he was holding his breath tightly the air would rush out of his lungs. He would die within about 30 seconds from lack of oxygen, maybe 60 if he was holding his breath, but he would not bleed from anywhere.