Theory:Doctor Who television discontinuity and plot holes/The Beast Below


 * At the begining of the Beast Below, when Timmy (the boy who scored zero) entered the lift the Smiler had a happy face in two shots. in the next shot of the Smiler, it had a sad face, butwhen the head turns, it turns form a happy face, to a sad face, and then of course a angry face. If this delibrate? Or a simple mistake?
 * It is deliberate. It is meant to be strange and they all do that.


 * There was only one star whale which saved Starship UK, so what happened to the other starships?
 * As Liz's recorded message refers to other nations leaving before the Whale arrived, it seems the UK was the only one unable to leave on its own.


 * Why is the Doctor surprised that the ship is moving even though there are no engines running? It's a spaceship. The law of inertia means it only needs engines to accelerate or steer.
 * I think it's because of the speed that the starship is moving. I don't know my physics... but I guess it couldn't slow down while in space since there isn't any friction? Now I'm thinking that the big issue is gravity--how would the ship be able to produce a gravity field without an engine? Or any other life support system.
 * You guys are missing the point. Without engines, how could it take off? That's what the Doc didn't get.


 * In the pre-titles sequence the boy who scored zero is not allowed to use the lift-like systems. He does disobeying the law and thus he is sent below to feed the beast. It is established that the Beast never eats children so he survives. It is stated that anyone who disobeys the law is sent below to feed the beast e.g. the Doctor and Amy. But why would the Starship UK have laws stating that zeros couldn't use the lifts. Additionally why would disobeying such a meagre law be punishable by such a severe way. To sum up, why is the police state so concerned over one child getting a zero?
 * Theoretically they might have a zero-tolerance policy which means that even the slightest disobediance is punishable in such a way. However this does not answer the question of why scoring a zero would be such a big deal.
 * The girl refused to ride with the boy because she knew that the lifts were a method of feeding the beast and the boy was going to be fed because of the zero. They also say citizens of limited value get fed to the beast. Probably to save on spending resources on unproductive citizens. Also the beast does need to be fed, maybe waste materials alone isn't enough.

In all other stories where it has been it has been central to the story. Even in Victory of The Daleks, its effects are central to why Amy remembers nothing of the Dalek invasion. In the other episodes it doesn't feature at all. So why put it in this story if it wasn't central to plot or its effects felt?
 * It's implied that the cracks are appearing at random throughout time and space. While the crack is not a pivotal plot point in this particular episode, it hints at/references the final episodes of this season.