In the film, Kersten is shown on a long train journey to Oslo where he hopes he will be awarded the Nobel prize. In preparation for the movie, Randau did extensive research of his own and discovered the masseur’s SS membership card in an archive in Berlin. View image in fullscreen ‘He wanted to save his own reputation’ … Claes Bang as Felix Kersten in I Is Another. View image in fullscreen Felix Randau, the German director of I Is Another Photograph: Oscar Gonzalez/Getty ImagesKersten was personable too. Nonetheless, having spent so long researching and making the movie, Randau retains a certain sympathy for him.