Continuity mistake: Will is trying to have dinner with a target. There are many people around and diners eating in the restaurant. When the "blonde" puts a gun to Will's head and a fight ensues, the restaurant is instantly deserted. Not only that, but every table is completely devoid of dishes, glasses, etc. It is like the diners were never there. (00:27:30)
Factual error: Will is asked by Jai to place his wrist watch - which is filled with explosives - against a wall. He does, and it somehow sticks to the vertical concrete wall. An adhesive back would have been noticed by Will, as it was against his skin on his wrist. Not to mention that an explosion in a contained space that small would have deafened them both, or worse. (00:35:05)
Continuity mistake: Will and Frankie are trapped in a safe with water rising. One moment the water is below their waists, and in the next sentence the water is almost to their shoulders. (00:36:15)
Character mistake: When Will speaks German to the Austrian lady about sweets, he says that he learned German from his grandfather. The grandfather did a lousy job. Will's German is very, very bad and not understandable.