In The Orheim Company, Jarle Klepp and Helge Ombo first met in school in 1985. In The Man Who Loved Yngve, Jarle Klepp and Helge Ombo got to know each other in a school trip.
When the family is up under Mount Gausta, tenting, the mountain is clouded down, but during the conversation and different camera-angles, the mountain is clear, as can be when the next frame shows the majestic mountain behind them. The clouds and fog couldn't disappear like that in 5 seconds.
At one point you see a 40 km/h speed limit sign. These signs where not used in 80's when this movie takes place.
The plot takes place in the mid-80's. However, the Jeep Cherokee driven by the guide in Rjukan (played by actor Henrik Mestad) has a registration plate letter combination (CF) which was not used in Norway until year 2001.
Obligatory stickers on number plates used on all cars in Norway from 1993 to 2012 are not present in the late 90's / early 2000's time lime during the funeral of the main character father.