When Bierce shows up after being missing, Frances shows him the date as February 11. Two days later Drake is in Bonn and tells Penny that it is the 31st of the month.
When Dupoirier flings his bag at Bierce in the opening scene, he aims it toward Bierce's middle where his gun hand is. However in the very next shot the bag is sailing upward over Bierce's head and Bierce is able to duck under it.
When Bierce tells Dupoirier that he has "5 seconds left"; he actually has 11 seconds left.
When Bierce turns up again at his embassy, Drake addresses him by the name of "Mr. Pearson" when he asks if Bierce's head hurts. Elsewhere during the scene, Drake correctly addresses and refers to him as "Mr. Bierce".