After the 1980 coup d'état, he was imprisoned without trial for three years at the age of 17 for alleged communist activities[1][2][3] and was tortured.
After working as an assistant director, he established his own production company called "Mavi Film".
Uncompromising and fiercely independent, Demirkubuz controls almost every aspect of his films, making few concessions to prevailing trends.
He started in the movie business as the assistant of director Zeki Ökten in 1986 and made his first film, "C Blok" in 1994.
He was able to manage his projects with very low budgets due to the experience he gained while working as an assistant.