What Happens In Vegas Digital Copy Serial Number My Ipod Won't Play The Movie I Put On It, Can Someone Help Me?

My Ipod won't play the movie I put on it, Can someone help me? - what happens in vegas digital copy serial number

I bought the film What Happens in Vegas and came with a digital copy and put it on my iPod. It shows in my films, but when I try to play, it shows a black screen then returns to the place where you can choose to play. I do not know what to do! Someone please help me!