I used to rent dvd's from love film a few years ago. You pay a monthly charge and then they post them to you, then you post them back.
Only problem was that for the cheapest monthly rate you were limited to I think 2 films per month. If you wanted a real good turnaround of movies you would have to have payed quite a lot more in subs.
That was quite a while ago though. Not even sure if it still exists, what with online movie services like Netflix and the like. Sorry I couldn't be more helpful.