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.
Edward Irving Ludwig (7 October 1899 – 20 August 1982) was a Russian-born American film director and writer.
 He directed nearly 100 films between 1921 and 1963 (some under the names Edward I. Luddy and Charles Fuhr).
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.
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.
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.
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.
Steady Company is a 1932 American action film directed by Edward Ludwig and written by Edward Ludwig and Earle Snell.
 The film stars Norman Foster, June Clyde, ZaSu Pitts, Henry Armetta, J. Farrell MacDonald and Maurice Black.
 The film was released on March 14, 1932, by Universal Pictures.
Sweet Movie is a 1974 avant-garde art house comedy-drama film written and directed by Yugoslavian director Dušan Makavejev.
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.
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.

Question: Are Edward Ludwig and Dušan Makavejev both film directors?
Answer: yes