In the 2011 movie A Dangerous Method about the relationship between Freud and Jung and the beginnings of psychoanalysis, Michael Fassbender played Carl Jung. Otto Gross was also characterised in the film, though in the manner of Hollywood storylines, and the authors of a Michael Fassbender fansite were inspired to delve a bit deeper perhaps than the film did, which you can read here: http://www.michaelfassbender.org/ottogross.html .