WARNING: Don't say the phrase 'plot hole'

Sort of a library, small for right now, of "plot holes" and such. Not that hard to find, so I'm not patting myself on the back or anything. OBVIOUS SPOILERS. Some may even ruin the movie completely for you, or perhaps ADD to the intrigue? [url=http://www.moviemistakes.com/film9292]www.moviemistakes.com Prometheus[/url] The downside: Seems like anybody and everybody can post, and edit, without any real verification or proof of being right or wrong. (Unless obviously somebody points out something VISUALLY wrong with the movie(s) that can just be verified by viewing it.) For example In this scene, left shoe is untied, and in the next scene right shoe is untied.