Alfredson and star Stellan Skarsgård as Orm and Sverre Anker Ousdal as Toke. The project was cancelled for financial reasons, but Alfredson's script was reworked into radio theatre which was broadcast in 1990. A comic adaptation by Charlie Christensen in album format was published in four volumes between 2000 and 2004, covering the first book in the series. Swedish author Mikael Westlund published his debut novel Svarthöfde in 2002, which expands on the brief summary at the end of The Long Ships, giving the further adventures of Orm's son Svarthöfde (Blackhair) and the sons of Sone. As with Bengtsson's novel the language has an archaic flavor, leavened with humor, and several historical figures appear. In 2011 the Swedish production company Fladen Film announced they had acquired the film rights for the book, and that an adaptation was under development. In May 2014, during the press conference of Swedish film company Film i Väst at the 2014 Cannes Film Festival, Danish film producer Peter Aalbæk Jensen, from the Danish film company Zentropa, founded by Lars von Trier, said that he was going to produce an adaptation of the novel. Aalbæk said that he had Stellan Skarsgård in mind as playing the old Röde Orm and his acting sons Alexander, Gustaf, Bill and Valter playing Röde Orm at various stages in his life. This adaptation is planned to be split into two films and also as a TV-series in four parts. Hans Petter Moland from Norway will be directing. Stellan Skarsgård has expressed interest in acting in the film if the script is good. Filming was expected to start in Västra Götaland in 2016, however Film i Väst decided to end their collaboration with Aalbæk and the film project was cancelled. In 2017, the Royal Danish Theater made a screenplay based on The Long Ships, to be played not in the theater, but atop the recently built Moesgård Museum. The play was held atop a giant constructed wooden stage resembling a crashed Viking ship with a dragon's head and was based on the second part of Bengtsson's book, after Røde Orm returns to Denmark with the bell. The play was directed by Henrik Szklany with Andreas Jebro playing Röde Orm (Røde Orm in Danish). In 2018 the show was brought to Ulvedalene in Dyrehaven park. In 2020, Dramaten featuring Emma Broomé as Orm, Lennart Jähkel as both Krok and king Harald and