Brand new factory sealed dvd has a tiny endentation on the back upper left corner.

Not based on the Black Sabbath song but rather the Marvel Comics' armored avenger.

Billionaire weaponsmaker/media playboy Tony Stark (Robert Downey, Jr.) builds an amazing suit of armor to help escape from terrorists and decides to make a go of it as a card-carrying hero, much to the confusion of his flirty assistant (Gwyneth Paltrow) Girl Friday. After seeing the misery it produces firsthand, he vows to get out of the arms business, much to the chagrin of his business partner (Jeff Bridges).