In some scenes, modern security cameras and coded door locks can be seen on some buildings.
In real life, General Ernst Põdder had mustache.
When Tanel Rõuk chased the car, a grenade explodes about 5 meters away from him, but he's only knocked down for a few seconds and stands up with out a scratch. In reality he should have been killed, or at least seriously injured.
The movie has a scene with the Estonian consulate in Leningrad, dated November 29, 1924. There is an angry crowd, and among the many insults it shouts, several times fascists are mentioned. This is unlikely for 1924, as the word came in use as a pejorative in Russia only in World War II, after the German attack in 1941.