OK, so here's a thought for you, and it's something I have done on many occassions.
Buy the disk that you want to see on the week that it comes out and try to get it cheap. Watch it once on your own or with the other half.
Open up an ebay.ca account. Sell it on eBay if you don't wish to keep it. Recoup a good portion of your money.
I've blind bought bunches of films that I didn't want to keep and got shot of them that way.
And I didn't even mention ripping them before selling them on either.,..