Other mistake: Paul hands Abby a very thin envelope. It is supposed to contain: an insurance policy, a car title, a property deed, and an airline ticket, among other items. But that is impossible given how thin the envelope was.
Factual error: Paul tells Shea that he has a condition called Sporadic Fatal Insomnia. Later, Shea finds a fork in a bag labelled Abby. Paul explains that Abby is his daughter, and he wants to test her DNA, because she has a 50-50 chance of contracting the disease. This is false. Sporadic Fatal Insomnia is not hereditary. Fatal Familial Insomnia is genetic and is the inherited form.