Rockstar games are said to be investigating why consumers who pre ordered Grand Theft Auto V from the online retailer Amazon have received copies of the game this weekend, ahead of Tuesdays release. Check out the announcement by gamesindustry.biz below. Grand Theft Auto V could shift 18 million units during Take-Two’s financial year. Have you already received your copy of GTA? If so does it live up to the hyper created around it?