Other mistake: The temperature is dropping and everyone is bundling up to stay warm, yet when talking to Melanie, we can see Pauline is still wearing her sandals.
Suggested correction: That's a choice by the character. I've seen many people wearing sandals throughout the winter.
Other mistake: James 'Big Jim' Rennie shoots at a picture of him and his son sitting on a table next to a yellow wall. After he shoots the picture he picks it up. When he does that there is no bullet hole in the wall behind the picture. (00:43:00)
Factual error: When Jim is watching the guy about to be blown up, the reflection in the binocular lens is the same as we just saw, when it should be a reversed image.
Continuity mistake: When "Big Jim" is tearing down a plastic divider, there is a product placement bottle of liquor: the label is always facing the camera from multiple camera angles. (23:00:00)
Revealing mistake: When big Jim is drinking from the liquor bottle the cap is on the entire time.
Continuity mistake: When one of the Aktaion men is showing Norrie how to use a gun, the fingers of his left hand are resting on the rear sights, the very next shot his left hand is now around the gun with his fingers on the trigger guard and thumb on the hammer.