Rockstar has confirmed through a press release that they have taken away the previously held record of $170 million in 24 hours from Halo 3. Grand Theft Auto IV is now the fastest-selling video game in 24 hours at a whopping $310 million. Wow. In some even more astounding news, they have also taken the record of fastest-selling Entertainment Product in 24 hours, which includes video games, films, and book releases. I think we all knew it was gonna happen though.