In 1989, Žižek published his first English-language text, entitled "The Sublime Object of Ideology." In this book, he departed from traditional Marxist theory to develop a more analyzed materialist conception of ideology that drew heavily on Lacanian psychoanalysis and Hegelian idealism. His theoretical work became increasingly eclectic and political in the 1990s, dealing frequently in the critical analysis of disparate forms of popular culture and making him a popular figure of the academic left. A 2005 documentary film entitled "Zizek!" chronicled Žižek's work. A journal, the "International Journal of Žižek Studies", was founded by professors David J. Gunkel and Paul A. Taylor to engage with his work.