Corrected entry: When Brett is about to be killed by the alien, a close up shot of just his hat is shown when the alien's teeth impale his skull and his brains come pouring out. In slo-mo you can see that an alien hand is holding his head in place as it strikes. A split second later we see Brett's face, but there is no hand anywhere near him nor is the alien reaching out towards him. (01:07:50)
Corrected entry: Why is Lambert the only crew member who managed to get covered in blood? There was even blood on the wall in the background, all the other members were in close around the table and yet their clothes were clean, Parker was even holding on to Kane's arm when the Alien burst out of Kane and yet he also managed to stay clean.
Corrected entry: In the beginning, when they are trying to take the creature off of Cane's face, acid squirts out and leaves a hole in the floor. Later, when Ripley and Dallas go in to look for the creature, Ripley looks under the table and you can see a clear shot of the floor, but there is no hole.
Corrected entry: If you look at the opening sequence of the Alien film, where the ship "awakens" and begins turning on computers, you will notice a coffee cup that appears and disappears in front of the computer terminal.
Corrected entry: In the infirmary scene where Ash, Dallas, and Ripley are looking for the facehugger that has detached itself from Kane, just at the moment when Ripley is looking under the table where Kane is lying, Dallas is empty-handed, he knocks something over and gives Ripley a fright and says sorry while at the same time holding a light in his right hand that was not there a second or two earlier. (00:47:35)