LimeWire is a program that you pay for with your credit card..it costs $20 and you only pay once ^^;;;
I connects to the network, and it's split up into several categories. Since you want movies, you would click on "Videos" and where it says "title" you just put the name on. Then, a bunch of hits will come up, and you just Double-click on what you want, and it will start downloading. If you want to preview it to make sure it is the right thing, go to the little window that opens when you download and Right-click on what you are downloading. Near the bottom, it should say, "Preveiw." Hit that and you can get a preivew of what you are downloading.
Hope that wasn't too technical and I hope it helps you out ^^;;;