Vincent Cassel's portrayal of Dr. Otto Gross in the film, The Dangerous Method, is very powerful. However, it doesn't say much about the real Otto Gross - who, despite his many flaws, managed to combine interests in Stirner, Nietzsche, Freud, Kropotkin, 'sexual revolution', feminism and the German Communist Party (in its early more left-communist phase). He was also an important influence on Jung, Kafka and Berlin Dada.
Here is an interesting article by Gottfried Heuer, and a classic article by Gross himself describing the revolutionary potential of psychoanalysis, years before Reich, Marcuse, Fromm or Laing:
A collection of writing about anarchism and other topics by legendary anarchist, Emma Goldman.