Reign of Fire

How come a bunch of English people living in a post-apocalypic world all have perfect teeth?

Where are they getting the coffee from if they can't even grow food? (certainly they aren't growing it in England)

How are they all surviving on one field of tomatoes?

Where are the American's getting helicopter fuel?

If the dragons are the cause of mass-extictions, how would humans even know about them?

Where was the Time magazine with the picture of Manhattan on it printed and how did it get to England?

Where is the American chick getting her make-up?

If the dragons eat ash from plants they have burned and are starving, why are there still buildings with wooden beams standing?

Still, the dragons looked cool, the story was not great, but was still somewhat entertaining. See it on a cheap Tuesday.