We watched it too, apart from the ending because the Dowager Countess always knows when to telephone. :\

It wasn't that bad. They actually called the school a "primary" school and not a high school. "Salisbury Plain Primary School," okay, but somebody did some research somewhere along the line. And we particularly liked the detail of all those pyramids intricately opening up just before they blew themselves to shrapnel turning into volcanoes. All that was missing was the statues on Easter Island getting up and doing the macarena.