I don’t know why this is, but my sample set of three soundtracks in my iTunes collection shows everything to be in D minor.Pirates of the Caribbean is in D minor:
Transformers is in D minor:
Vantage Point is in D minor:
Tron Legacy is in D minor:
Keys like C sharp major and B flat minor aren’t getting calls from their agents right now. Thousands of sharps and flats are out of work, people!