Yeah its your PSN email. Some newsletter. No big deal to me, it'll get sent to my spam folder. Actually now that I redeemed the code I can probably uncheck receiving the newsletter entirely.
And it says movie credit, but thats not what it ends up being. Its a generic PSN code that adds $5.99 to your "wallet". My account had a few cents left in it and now it reads $6.89. I can spend it on games if I want, and others already have.