Golden Compass is a New Line release and there seems to be a hack to access their films' menu (thereby allowing playback) despite Reg A coding:
Insert the disc,
message: "region incombatibility" comes up,
press the triangle on the controller or remote,
which should bring up the pop-up menu,
if then click on/select "top menu" on remote/controller
access to film should be accessable...
others say you could just press the square button instead.
-> haven't had a chance to try either, just give it a try me thinks.