Editing Andrei Tarkovsky (section)

===''Concentrate''===
'''''Concentrate''''' ({{lang|ru|Концентрат}}, ''Kontsentrat'') is a never-filmed 1958 screenplay by Tarkovsky. The screenplay is based on Tarkovsky's year in the [[taiga]] as a member of a research expedition, prior to his enrollment in film school.<ref>{{cite book |last= Turovskaya |first= Maya |title= Tarkovsky: Cinema as Poetry |publisher= Faber and Faber |year= 1989 |location= London |url= http://ucalgary.ca/~tstronds/nostalghia.com/TheTopics/On_Shorts.html |isbn=978-0-571-14709-0 |access-date= 30 December 2014 |archive-url= https://web.archive.org/web/20090612124640/http://ucalgary.ca/~tstronds/nostalghia.com/TheTopics/On_Shorts.html |archive-date= 12 June 2009 |url-status= dead}}</ref> It's about the leader of a geological expedition, who waits for the boat that brings back the [[concentrate]]s collected by the expedition. The expedition is surrounded by mystery, and its purpose is a state secret.

Although some authors claim that the screenplay was filmed, according to Marina Tarkovskaya, Tarkovsky's sister (and wife of Aleksandr Gordon, a fellow student of Tarkovsky during his film school years) the screenplay was never filmed. Tarkovsky wrote the screenplay during his entrance examination at the State Institute of Cinematography ([[Gerasimov Institute of Cinematography|VGIK]]) in a single sitting. He earned the highest possible grade, "excellent" ({{lang|ru|отлично}}) for this work. In 1994, fragments of ''Concentrate'' were filmed and used in the documentary ''Andrei Tarkovsky's Taiga Summer'' by Marina Tarkovskaya and Aleksandr Gordon.<ref>{{cite web |last=Blasco |first=Gonzalo |title=An Interview with Marina Tarkovskaia and Alexander Gordon |publisher=andreitarkovski.org |date=10 November 2003 |url=https://www.ucalgary.ca/~tstronds/nostalghia.com/TheTopics/Marina_and_Alexandr.html |access-date=14 October 2021 |archive-url=https://web.archive.org/web/20180307214559/http://people.ucalgary.ca/~tstronds/nostalghia.com/TheTopics/Marina_and_Alexandr.html |archive-date=7 March 2018 |url-status=dead}}</ref>