This take on Sandig’s poem is by the Belgian filmmaker Jan Peeters.
In his artistic practice, Jan Peeters currently focuses on so-called ‘iconotextual’ works: he merges words (and more precisely, texts that are set typographically) and moving images (with emphasis on filmic images) to form visual-textual unities of content, which cannot be categorised as either pure image or pure text. In these ‘reading films’ he brings together the languages of literature and visual art, without focussing necessarily on certain implicit elements of mainstream film, such as narration, acting or characters.
For full credits and screening information, see the relevant page on his website. The summary reads:
While a university librarian struggles with words at lonely heights,
an old pigeon fancier awaits the homecoming of his pigeons …