With Synecdoche, has Kaufman bitten off more than he can chew? So asks the Guardian's Ben Walters:

Charlie Kaufman's new film, Synecdoche, New York, plays at the London film festival tonight and tomorrow. The showings, which are sold out, so far represent the only chance for British audiences to see this remarkable feature. No UK distributor has yet been found for the directorial debut of the writer of Being John Malkovich, Eternal Sunshine of the Spotless Mind and Adaptation. As Xan Brooks wrote last week, this is both regrettable and somewhat understandable; Synecdoche, New York is sprawling, dense, uningratiating and more or less unfathomable, but it's also funny, moving, surprising, rewarding and unlike anything else out there. All of which makes it more than deserving of a theatrical release, and more than a little like New York itself. (Source)

As far as I know - and I could be wrong - there's no Aussie distributor on board, either.

Update:  from Variety we get this good news...

LONDON — Expanding U.K. indie distrib Revolver Entertainment has snapped up all U.K. and Irish rights to Charlie Kaufman's directorial debut “Synecdoche, New York.”

Deal was done between Revolver's Joel Kennedy and Mark Lindsay of international sales agent Kimmel Intl.

Pic, which premiered in competition at Cannes, screens Tuesday at the Times BFI London Film Festival. Kaufman, who is in London to discuss his craft at a LFF masterclass, will introduce the screening.

Revolver will fire “Synecdoche” into U.K./Ireland theaters in the spring. (Source)