Im norwegian and saw the movie in the original language. All the actors speak "perfect" norwegian with the local accent, which... to some degree make them more sympathetic (aka they are "one of us"), but it does seem somewhat "faked", as it is unlikely that people in their situation ALL speaks norwegian so fluently. I think the actors did a good job and the script is not bad. The setting is scarce, only a few locations, all of them rural nothern norway in winter, meaning a lot of white and grey. The subject the movie expolores, underage immigrants that are deemed not worthy of citicenship, is difficult and challenging, most for the people involved, but also for "us" norwegians. I do however think the script could have gone further on WHY they the kids are sent back. Reality is that many of them have been sent by their familiy for financial reasons and arrive in Norway through human smugglers. And they are returned to their home country because they do not qualify as refugees. But in all the script handles it good and the norwegians are not portrayed as bad people.
My biggest problem with the movie is that it seems kind of cheap, with the simple settings all through the movie and not much happening, and that there is not really much development for the characters. The movie could have been an afternoon movie on tv.