Corrected entry: It's obvious the fat American man was played by a European because of the way he pronounces "been".
Corrected entry: The character Eirik gets shot in the eye with a blank by Ray. From this point on he is blind on one eye. Later in the film (at most one day later), he sees Ray sitting with Chloe on a terrace. He then runs to the tower where Harry is and jumps over a rope that hangs 40 cm high. For someone who was shot in the eye a day before, he could see pretty well and was fairly agile.
Corrected entry: When Ken jumps from the bell tower, there are several problems. One, he could barely move from the loss of blood and then stands up to jump. Two, he drops the coins from his pocket into a crowd and then jumps into an empty space. Three, he jumps face forward - which would mean he would land perpendicular to the building - however he landed parallel to the building. Four, he was conscious and talking after a fall from that height onto bricks.