Director: Bo Widerberg
Script: Bo Widerberg
Cast: Peter Schildt, Kerstin Tidelius, Roland Hedlund, Stefan Feierbach, Martin Widerberg, Marie De Geer, Anita Björk, Olof Bergström, Jonas Bergström, Olle Björling u.a.
Camera: Jörgen Persson
Editor: Bo Widerberg
Production: AB Svens Filmindustri

Ådalen 31 was very controversial in Sweden in its day because of its political message. However, the filmmaker, Bo Widerberg (1930–1997) was given great attention internationally and was nominated for the Special Grand Prize in Cannes, an Oscar, and a Golden Globe award.