Nils Karlsson Pyssling is a 1990 Swedish family film based on the novel with the same name by Astrid Lindgren. Nils Karlsson Pyssling is a 1990 Swedish family film based on the novel with the same name by Astrid Lindgren. Nils Karlsson Pyssling is a 1990 Swedish family film based on the novel with the same name by Astrid Lindgren. Nils Karlsson Pyssling is a 1990 Swedish family film based on the novel with the same name by Astrid Lindgren.