Sarah-Sofie Boussnina, who plays the younger Kimmie in the "20 years ago" sections, is actually only five years younger than Danica Curcic, who plays Kimmie as an adult.
Pilou Asbæk (Ditlev) graduated from the boarding school of Herlufsholm in 2001 - a very konservative upper-class boarding school that is clearly the inspiration for the movie's fictional one.
In December 2014, the film became the highest-grossing Danish film ever at the Danish box office with 66 million kroner from 749,000 tickets sold (grosses not adjusted for inflation).
The second film in the Q series.