A commonly cited "plot-hole" amongst Prometheus detractors is David 8's "36 hours" moment... When the crew reach the moon LV-223 and awake from their extended cryo-sleep, David responds to Meredith Vickers that they have been asleep for 2 years, 4 months, 18 days, 36 hours, 15 minutes. A common complaint has been that if Michael Fassbender's David is using established temporal units to measure time, then he should have said 2 years, 4 months, 19 days, 12 hours and 15 minutes? Why 36 hours? One of our keen Prometheus fans tweeted screenwriter Jon Spaihts to ask him and he just notified me about the response he received from Mr Spaihts. In it the screenwriter confirmed that this supposed "plot-hole" was deliberate stating "Robots have been showing off with this trick as long as there have been robots..." It's likely that the line was included to show that David had some elements of 'twitchy programming', rather like future android model Ash in Alien. Be sure to check out our other in-depth Prometheus articles below... Follow me on Twitter: @BenjiTaylorWins