Editor's note: This was originally published in two parts on RealMoney. It is being republished as one article as a bonus for TheStreet.com readers.
The marketing material received by GameStop relates to a release on April 25.
GameStop stores have started to receive notifications that marketing material for a new Activ
The list is piling up.
The combination can bolster a stock's price, but as GameStop shows, it isn't a guarantee of success.