In the living room when Francie first confesses to Samantha, the pendulum on the wall clock is not working. When they cut back to the scene it is.
When Samantha, Cassie and Philby are discussing vacation destinations, Philby comments about Guam's beaches and great exchange rate. Guam is a U.S. Territory and its currency is U.S. There would be no exchange rate, because there is nothing to exchange.