Wiens also wrote screenplays, for example for Frank Vogel's film ... und deine Liebe auch [de] (1962), which justifies the Berlin Wall, and for Konrad Wolf's Sonnensucher (1958).
Wiens was co-editor of the poetry series "Antwortet uns" (Answer us) and editor-in-chief of the influential literary magazine Sinn und Form in 1982 until his death in Berlin at the age of 59.
At the end of the 1960s, he interrupted this activity for a few years because of "ideological stomach ache", then continued it from 1972 until his death as an unofficial collaborator.
Wiens "handed over private letters addressed to him, provided detailed denunciatory information on writers from East and West and reported on international writers' meetings in the Soviet Union, Hungary and Yugoslavia", according to Joachim Walther in his standard work Sicherungsbereich Literatur.
[5] He provided reports on his GDR colleagues Jurek Becker, Wolf Biermann, Franz Fühmann, Stefan Heym, Sarah Kirsch, Heiner Müller, Ulrich Plenzdorf and Erwin Strittmatter, among others, the Western writers Heinrich Böll, Günter Grass,[6] and Andrei Sakharov, as well as his third wife, the writer Irmtraud Morgner, who divorced him in 1977.