When I first bought MR I hadn't seen the movie yet and didn't know there was a 2-disc.
The store I got it from only had the single disc version. I had to wait until the week after to buy it though. My Dad wouldn't let me get it, even though I would be using my own money because he didn't think it was a very good movie. Didn't think I would like it either. I went back the following weekend with my mom, bought it, watched it, fell in love with it. Several months later I hunted down a 2 disc copy.
I don't know what my dad was thinking when he said it wasn't a good movie. I can't count the number of times I've watched it.