This isnt due for release till december, but is in Play.com's 2 for £12 blu-ray deal for some reason?
So this and another film for £12...
£16.99 on Amazon Pre-order
When a no-account bank clerk discovers a curious wooden mask he finds it has some interesting properties; to wit, the mask magnifies the wearer's personality to superhuman proportions--oddly, others seem to find this attractive. The no-longer-nebbischy clerk enjoys his new life considerably, but when he seduces the girlfriend of a powerful gangster, complications result.