French poster for Cronenberg's A Dangerous Method

A French poster for A Dangerous Method has appeared online.

The David Cronenberg-directed outing stars Viggo Mortensen and Michael Fassbender as Sigmund Freud and Carl Jung, the founding fathers of psychoanalysis.

Keira Knightley also features as Sabina Spielrein, the Russian-Jewish patient who came between them, leading to the birth of their famous method.

The poster has all three stars looking awfully upper-class, dissolving into one-another to create an optical illusion that could end up giving you a spot of brain ache.

The way their heads are conjoined is almost like a sideways Human Centipede , except less, you know, disgusting.

See the poster here:

A Dangerous Method opens in UK cinemas on 10 February 2012.