Revealing mistake: At the very beginning of the episode, we see a hydrocharge being fired which causes an explosion in the sea. Then just a few shots later, another hydrocharge is fired and we see the same explosion - this is due to footage of one explosion being used twice.
Revealing mistake: The switch that Phones uses to turn off the television set is labelled "BRIGHTNESS".
Revealing mistake: The magazine that Phones is reading has blank pages inside.