Desc: Althusser, an Intellectual Adventure: Directed by Bruno Oliviero. With Louis Pierre Althusser, Etienne Balibar, Yves Duroux, Pierre Macherey. Philosopher, Marxist, professor, murderer. More than a quarter century after his death, Louis Althusser, one of the most influential leftist thinkers of the 20th century, remains an enigmatic figure.