In the scene where Frank, played by Kim Sønderholm, is hit over the head with a bottle by Simone, played by Julie Kaya Nielsen, Frank's expression of pain is quite real as the fake bottle turned out to be a lot harder than it was supposed to be. Sønderholm actually blacked out for a few seconds before regaining his conscience and continued acting. This clip is used in the actual film as strongly insisted by Sønderholm.