 Belgian director and screenwriter Joachim Lafosse released Our Children , a film based on the story , to positive reviews in 2012 . One reviewer called the film a " gloomy and penetrating psychological drama " that portrays the claustrophobia of a protagonist who lives in an environment in which " the walls are constantly closing in around her . " Our Children also attained an 93 % rating on the aggregation website Rotten Tomatoes . Émilie Dequenne , a French @-@ speaking Belgian actress , played the character based on Genevieve Lhermitte . Dequenne won the Un Certain Regard Award at the Cannes Film Festival and " Best Actress " at the Saint Petersburg International Film Festival for her role . 
