Keira Knightly believes that English people are obsessed with spanking and she is no exception. Keira played Sabina Spielrein who has a relationship with her therapist Carl Jung. I have isolated the pertinent scenes for you. Early on in the movie Jung sees that his patient reacts to the sound of a cane striking her coat, to clean off dirt, and admits that she was excited by the beatings her father administered. Later on he participated in that excitement by spanking and having sex with his patient.
In this video Michael Fassbender as Carl Jung hand spanks Keira Knightly as a prelude to sex. I thought Michael was awesome in Prometheus by the way
Later as thing get hotter Jung spanks his patient, after tying her wrists, with a nice leather belt. Interestingly enough his patient Sabina Spielrein went on to be a prominent psychoanalysts and teacher of psychoanalytic theory but personally I was looking forward to the spankings and as always wanted more.