Arthames (9 out of 10 ) It should be said, that this movie is based upon the Norwegian movie, with the same name. So the writers are actually Nikolaj Frobenius and
Erik Skjoldbjærg.
lakefxdan (10 out of 10 ) No, that's not necessarily correct. The WGA rules determine the credits. In this case it is a screenplay by Seitz which is *adapted* from a story by Frobenius and Skjoldbjaerg. They still receive screen credit, but they did not write the English-language screenplay.