So I found this video youtube. Someone put scenes from the "Notebook" to the song "Fix you" by Coldplay. It is a bad example of copy right laws because the creator of the video did not have rights to the song or the movie clips, and they are posting it on the internet where it can be viewed by the public. In order for this to have been legal they would have needed to purchase the rights to the song and movie.
I think that the next video followed the copyright laws a little more closely. Less than ten percent of the movie is shown, and it is not altered. I don't think that they had purchased any rights to this movie, but less than ten percent of the movie was shown which makes using a movie clip acceptable.