I know its a bit early to put up a xmas film but I was just looking around for it as it was one of the UMDs that was burgled from my house. I'd actually bought it for about £15 last year from hong kong as they are region 2 also (and it hadnt been released here)
anyways i found that it i be released on october 8th (YES! they are still releasing them!) and you can get it delivered to your local store for only £5.99!
if you dont have one near the zavi will also be doing it £8 delivered http://www.zavvi.co.uk/dvd-UMD-Children-and-Family-The-Polar-Express/868410/ca14c.r10.1/p.jsf