When Kristian, Sondre, and Julia are in the Jeep, the front passenger seat is empty, then the camera angle changes to Sondre sitting in that seat.
When Kristian and Julia get into the Jeep, a shot from the right shows Julia entering the Jeep; the next shot from the left shows her sitting down in the passenger seat. In the next shot Kristian enters the car and the passenger seat is empty.
The film takes place in late May when they travel to Åkra, in late-summer August traveling by helicopter, in June when they return.
When Idun is about to give Kristian mouth-to-mouth, a close-up shot shows Kristian opening his mouth slightly, just a moment before she breathes into his mouth. His chin moves right after Idun adjusts his head and removes her hand from his face.
When Kristian turns around by the ferry, his car sounds like a V8, although the Jeep Cherokee of that vintage was never delivered with one. According to the badge, he has a 4.0 straight six engine.
The surveillance center's offices and Geiranger seem to be just a quick drive between each other. In real life, travel would involve either a drive with two ferries or one drive with a sixty minute ferry ride.
When Kristian goes to the fuel station, he picks up the diesel pump even though the car is (according to the badging) a Jeep Cherokee 4.0, running on petrol. He should've used a green petrol pump instead of the black diesel pump.