Over at Little Nuances, Lee recently discussed how he doesn't like to watch the commentaries and extra stuff on DVDs. I can understand his unwillingness to spoil the movie magic. I completely agree with him that the alternate ending of Rocky Balboa was totally unsatisfying. I wish Stallone had never even contemplated filming it that way. But he did.
However, I still find myself drawn to the special features on DVDs. I like hearing about how other artists approach their craft. On the recent live action version of Charlotte's Web, the commentaries gave some wonderful insights into the film. The opening is not the same as it is in the book. Instead, the director researched E.B. White's early writings on the book and selected one of about 17 alternative openings the author himself had considered. The director thought this opening played out better on film. Maybe, maybe not, but I can certainly respect the effort he went to in remaining true to the story.
As for spoiling the movie magic, I've watched the extra stuff on the Lord of the Rings trilogy almost as many times as I've watched the movies themselves. At one point, the commentary delves into how they computer animated some of the horses so the real ones wouldn't get hurt during the intense battle scenes. I suddenly realized that the honest question in my mind was "how did the Nazgul know to only swoop down on the computer generated horses?"
If you know anything about the story, you know the Nazgul are fictional and therefore also computer generated.
I guess the magic is still intact for me.