This really is a quite extraordinary film - yes, Hurd Hatfield as the eponymous Dorian Grey is wooden, but in a sense this just adds to the drama. His wooden acting lends a sinister atmosphere to his every move, gesture and feeling. This is amply set off by the other actors, who give their all - a distinct contrast to Dorian's flat, almost logical way of carrying on.
As an Englishman, I find the inclusion of American actors somewhat strange - I assume this was something to do with the film getting finance, but don't let the accents put you off. All the cast give their all and to great effect.
The direction is immaculate - look for the little details of lighting, the humble people in the background in many of tyhe scenes going about their everyday duties, everything has a symbolism, and the more you watch this film, the more you will get out of it.
A masterpiece - a must-see.