In each of the goofs listed with "PFC" listed as rank, the poster should have looked closer, they are actually E-2 Privates. PFC is E-3 and is the chevron and the rocker below. The rank insignia shown is just the chevron which is E-2, an E-1 (Buck Private) has no rank insignia.
shareYou can actually correct 'goof's in IMDB. When correcting someone else's mistake when reporting a so called goof in a film, update that particular section and select change/delete (then hit change and supply your answer in the box below). It helps to provide a link to a chart or list (you can find explanation of ranks on Google) in your explanation so that the IMDB mods can verify that you are correct. :)
Dr. Kila Marr was right. Kill the Crystalline Entity.share