Other mistake: When Bishop kills the arms dealer while Steve McKenna looks on, he stands behind the guy and in one quick motion, rips off the belt cleanly from the guy's waist, then he strangles him with it. There is no way you could yank the belt off like that if it were buckled. And even then, the buckle is certain to snag or rip one or more belt loops before you can pull it off.
The Mechanic (2011)
1 other mistake - chronological order
Directed by: Simon West
Starring: Donald Sutherland, Jason Statham, Ben Foster, Tony Goldwyn
Factual error: When Bishop and McKenna are discussing how to kill the preacher, Bishop states that epinephrine and adrenalin are a lethal combination; they are actually two different names for the same thing.
Arthur Bishop: Good judgment comes from experience, experience comes from bad judgment.
More trivia for The Mechanic