In the opening scene when the father of the bride talks about a special knife he and his wife used to cut their cake is completely inaccurate because there is no such tradition in any of the ex-Soviet republics. Although in modern times this has been adapted, but when the father got married, during Soviet times, there's no way they would have been cutting a cake with a "special" knife. During those times and following an old tradition, the most they did was break off a piece of sweet bread loaf with their hands and whoever broke off the biggest piece would be the head of the household.Factual Mistake.
It was Jubal's responsibility for letting Nina get shot. A pregnant woman even a Special Agent should not travel far overseas. He could have brought agents like Maggie Bell or Tiffany Wallace or male agents.
Smitty joined the FBI team shooting with an assault rifle. This is a continuing error as Europol Agents even in the field do not carry and use assault guns.