I LOVE this movie so much. I saw it in theatres twice, bought the special edition soundtrack, and now have added this movie to my collection. It is amazing! You probably already know the storyline. Gerard Butler plays the Phantom, Emmy Rossum plays Christine and Patrick Wilson plays Raoul. I think they all did a superb job, I love Gerard Butler as the Phantom. He has an edge to him that makes him a good phantom, and he is a good singer. It is hard to believe that Emmy Rossum was only 16 when she made this movie, she has the voice of an angel! Patrick Wilson plays a good knight on a white horse. In this movie, Raoul has a more prominent role, and actually IS a hero on a white horse. You get more of a sense of why Christine is so torn between these two men. In the play, Raoul wasn't that noticable!
On the second disc, there are some interesting tidbits. There is a history of the Phantom of the Opera itself. It mostly shows the London musical play though, which is disappointing. I admit, I did not watch all of it. There is also a Making Of Phantom of the Opera, the movie, which is really interesting. It's at least half an hour, and talks about all aspects of the movie including the dancing, costumes, sets, props, and actors. That is a really interesting bit. Thirdly there is a additional scene featuring the Phantom. It has Gerard Butler singing a version of "Learn to be Lonely", except personalized for the Phantom. It is an interesting scene, because it shows more of the phantom's lair, and an inside look at his world. It shows his sentimental side :) Also, some people may not have noticed, but below the scene there is another button you can highlight, and if you click it it opens a sing a long. You get the whole backstage crew and some of the cast singing The Phantom of the Opera. It is quite funny to watch!
All in all, this is a great addition to any Phantom Phan's collection. I hope this has been of help!