This movie starts out slowly, but it's worth the wait. Very little dialogue happens between the two leads initially, leaving you to read the body language and interpret the facial expressions. It's amazing how much both actors (Mads Mikkelsen especially) manage to say without speaking. I should imagine that watching it a second time from the beginning, knowing what you do, would be even more telling.
There are several moments of understated humour in what is otherwise an incredibly moving bittersweet movie. I would not hesitate to recommend this film, and suspect anyone who is in/has been in a long-term relationship will recognise immediately aspects of their own behaviour in how the couple act over the course of the few days. Truly believable, brutally honest, and sometimes uncomfortable viewing.
Mostly Danish, with some English and a sprinkling of Czech.