When Annie punches George on the shoulder after he reads his dad's obit, her ring is on her index finger; when she goes to see Mitchell upstairs it is on her middle finger.
George's father burial should be Jewish, not Christian.
The Sands's 1500Kg caravan is far too large to be legally towed by the 1000Kg small hatchback towing it. Under UK road traffic regulations, the first traffic policeman or highways agency patrol that sees it would stop them and prevent their onward travel. They would never make it to Cornwall before being stopped.