All ps3 games have a code printed on the disc and on the spine of the box. These will start with something like BLES, or BLUS.
Sony redemption codes are region specific and can only be redeemed by An account for the same region, i.e.. An EU code needs and EU PSN account.
When the code is redeemable you also need to have the correct region version of the game for the unlock to be recognized.
