The character of Liv Kraft, the young doctor who helps the children escape, is made up of several real-life women. The real events took place in Nazi-occupied Norway in November 1942. The title "I slik en natt" (In a night like this) is from the poem "Jøden" (the jew) by Norway's popular poet Henrik Wergeland (1808-1845).
The main character is named 'Liv Kraft'. In Norwegian liv means 'life' and kraft means 'force'.
The soundtrack consists only of music by Ludwig Van Beethoven (arranged and adapted for the movie by Øivin Fjelstad).