Question: What profession did Jean Yarbrough and Dušan Makavejev share in common?

Context articles: Dušan Mugoša
Montenegro (film)
Innocence Unprotected
Jean Yarbrough
Sweet Movie
The Coca-Cola Kid
Dušan Makavejev
W.R.: Mysteries of the Organism
Yugoslav Black Wave
Man Is Not a Bird

Dušan Mugoša ( 7 January 1914 – 8 August 1973), nicknamed Duć (Дућ), was a Yugoslav Partisan.
 He and Miladin Popović were the Yugoslav delegates that helped unite the Albanian communist groups in 1941.
 The two had been sent to Albania on the directive of the Central Committee of the Communist Party of Yugoslavia (CK KPJ), chosen for their revolutionary experience and political knowledge, to be available to the Albanian communists; they were the most active regarding Yugoslav–Albanian alliance.
 Mugoša and Popović were members of the Regional Committee KPJ (OK KPJ) of Kosmet (Kosovo and Metohija).
 In October 1941, OK KPJ Kosmet representatives Boro Bukmirović, Dušan Mugoša, Pavle Jovićević and Ali Šukrija met with Albanian communist delegation made up by Koço Tashko, Xhevdet Doda and Elhami Nimani in Vitomirica (in Kosovo).
 After having persuaded the disunited Albanian communists to pursue a common fight for "liberation from capitalistic exploitations and Imperial slavery", the work culminated in the meeting of 8 November 1941, with over twenty representatives, that ended in the official establishment of the Albanian Communist Party.
 While in Tirana, after the freeing of Popović, Krsto Filipović and others from prison camps, the OK KPJ Kosmet decided that Mugoša and Popović stay in Albania.
 Boro Bukmirović requested that Mugoša be returned to Kosovo.
 On 25 May 1942, Mugoša began his trip crossing Montenegro, joining up with Todor Vojvodić and Spasoje Đaković in Andrijevica.
 As the secretary of OK KPJ of Kosmet, he announced the annexation of Kosovo and Metohija to Serbia.
 He left Albania on 12 April 1944.
 The three most influential in the decision of uniting Vojvodina and Kosovo and Metohija to NR Serbia were Jovan Veselinov, Dušan Mugoša, and Mehmed Hodža, who represented the provinces on the extraordinary session of the Anti-Fascist Council of the National Liberation of Serbia on 6 April 1945.
Montenegro also known as Montenegro - Or Pigs and Pearls (Swedish: "Montenegro eller Pärlor och Svin" ) is a 1981 Swedish black comedy film by Serbian director Dušan Makavejev.
Innocence Unprotected is a compilation film by Yugoslavian director Dušan Makavejev.
 Makavejev's film is based on a 1941 film "Nevinost bez zaštite" in Serbia by Dragoljub Aleksić that was never released.
 In 1968, Makavejev established the film and expanded it with newsreel footage and interviews with surviving cast members.
Jean Yarbrough (August 22, 1901 – August 2, 1975) was an American film director.
Sweet Movie is a 1974 avant-garde art house comedy-drama film written and directed by Yugoslavian director Dušan Makavejev.
The Coca−Cola Kid is an Australian romantic comedy film, released in 1985.
 It was directed by Dušan Makavejev and starred Eric Roberts and Greta Scacchi.
 The film is based on short stories in "The Americans", "Baby", and "The Electrical Experience" by Frank Moorhouse, who wrote the screenplay.
 It was entered into the 1985 Cannes Film Festival.
Dušan Makavejev (Serbian Cyrillic: , ] ) born 13 October 1932 in Belgrade, Kingdom of Yugoslavia (now Serbia) is a Serbian film director and screenwriter, famous for his groundbreaking films of Yugoslav cinema in the late 1960s and early 1970s—many of which belong to the Black Wave.
 Makavejev's most internationally successful film was the 1971 political satire "", which he both directed and wrote.
W.R.: Mysteries of the Organism (Serbian: "W.R. - Misterije organizma", "W.R. - Мистерије организма") is a 1971 film by Serbian director Dušan Makavejev (born 1932) that explores the relationship between communist politics and sexuality, as well as presenting the controversial life and work of Austrian-American psychoanalyst Wilhelm Reich (1897–1957).
 The film's narrative structure is unconventional, intermixing fictional and documentary elements.
Yugoslav Black Wave (also referred to as Black Wave) is a blanket term for a Yugoslav film movement of the 1960s and early 1970s.
 Notable directors: Dušan Makavejev, Žika Pavlović, Saša Petrović, Želimir Žilnik, Mika Antić, Lordan Zafranović, Mića Popović and Marko Babac.
 Their films are known for their non-traditional approach to film making, their dark humor and their critical examination of the Yugoslav society at the time.
Čovek nije tica (English title: Man Is Not a Bird) is a European art film made in 1965.
 It was the first film from director Dušan Makavejev.