His doctor or specialist would not hand a bottle of painkillers to him. She would give him a prescription to have filled at a pharmacy.
The doctor visiting Jack after his hamstring injury gives him a bottle of pills. It's unlikely that a visiting doctor would be allowed to hand someone medication, rather than write a script (prescription).
During the Swedish league hockey fight, the opponent in orange skates to Jack and the player is noticeably taller. In the next scene they are the same height.
When Jack plays in the German league, many fans are waving small Garmant flags. In a league game that is not an international, it's unlikely fans would wave flags of the country of both participating teams, rather than paraphernalia of the participating teams.
When Elin and Jack first meet in Sweden, she uses miles to describe how far she lives. The metric system is in use in Sweden, so she should have used kilometers instead.
The Swedish pub had several Swedish flags. This would be extremely unusual for a Swedish pub, unless in a far-right setting.
There are a few scenes with a road sign that says Gothenburg. However, the signs should say Göteborg, which is the Swedish name for Gothenburg.
The sign at the bus stop has the same appearance as the signs belonging to local traffic in Östergötland county, which is located in southern Sweden. But the film takes place in northern Sweden.
When Jack Elin skating at the hockey rink, it's understood that she doesn't know how to skate but within seconds she is skating well.