I want to watch the movie "8 below" on my PC for free

Go purchase it, then you can play it on your PC for free as many times as you want.

What you are asking for is illegal.

Since it's a copyrighted movie, you can't legally view it for free.

You can get a used copy from Amazon for as little as $3:
Amazon.com: Used and New: Eight Below (Full Screen Edition)

I concur, you should go buy a copy, the you can watch it over, and over,and over , and ov... Okay you get the drift... It really is a great movie,