I downloaded the movie The Hangover, but I cant get it to play?!?! Help plz!!?

I have downloaded the movie The Hangover using the program BitTorrent, and it says that it is complete. Whn I double click on the torrent, a window pops up with an info folder, an a folder that is namd The Hangover Unrated. I have tried double clicking on the The Hangover Unrated icon, and it take me to Windows Live Movie Maker, but the video will not play. How do I make it play? When I clicked on the info folder there is an icon called the Hangover Cover,and the cover appears just fine. Can anyone please help me make the movie play? I am starting to get really frustrated. Please help!