i think the reason it ruins it is becuase you can see the video around the outside of the lens i definately couldnt do it though so i think its pretty cool
i know, well the tut i took only used one layer i used 12( i had to cut out the same spot 12 times! )
You could have just gone to the top layer and hit Ctrl+e 11 times then done it. But the movie is also to fast.