I’ve actually never seen Persona, the 1966 Ingmar Bergman film starring Liv Ullmann and Bibi Andersson, but if it’s even half as cool as these posters than surely it can’t be that depressing.
The UK poster was designed by famed Academy Cinemas linocutter, Peter Strausfeld, and the Belgian version (middle) comes via the impressive MyPosterCollection, which also features a nice selection of Japanese posters.