the other night channel 4 screened and australian film called dead letters, it was about all the post that goes undeliverd and ends up in the dead letter room. where a team of people try to trace the sender or intended recipient of the letter. its a spoof documentry and shows people opening letters to lovers and such like. but it got me thinking because i have heard of the dead letter room in the UK, does it exhist or is it UL, do we have people reading mail that is hard to deliver due to people moving on or bad handwritten adress's etc. or is it just another U/L.