Pifias

A trail of blood can be seen from the corpse of the second killed hostage, this blood is gone when the it cuts to a wide shot.

From about 1:21 onward, after Breslin pushes the body from the prison's high balcony, two similar shots show it on the ground floor with quite different blood spatter patterns around the head.

About 19minutes, 1 of Ray's associates says "that's Eastern Russia" and the scenery changes to Estonia. Latvia, Lithuania and Estonia are not even part of Russia anymore. Brsides, they are in the western end of the country. Clearly, someone does not know their geography.

In the fight between Ray Breslin and Lester Clark Jr. the blood on the wall is clearly fake as it can be seen moving around.

About 58 minutes in, the mobile phone rings but the name on the screen says blocked if it was blocked, the phone wouldn't ring and it doesn't make sense why they would save his number with the name blocked.

Despite the film taking place in Latvia, when the heroes observe their objective through high-tech binoculars, the GPS coordinates read that they are in California. At Apple headquarters, in fact.

About 20 minutes, Trent tells Ray the prison is "about 200 miles outside Belarus". In reality it is over 250 miles away, and that is "as the crow flies". Driving would be even further.