User blog:ItsWilliambirkin1FromYoutube/CreepyPasta copyright

Hello,

I was wondering what the copyright rules of the creepypastas were because there are YouTube users like MrCreepyPasta who read these and upload them to YouTube and I would like to adapt the CreepyPastas into short movies (non-profit of course) and I was wondering if I would be allowed to do that?