Article continues below advertisementAdrian Grenier is officially back on screen.The actor best known for playing movie star Vincent Chase on HBO's Entourage is returning to acting with the new thriller "Self Custody," a tense modern story that blends family drama with the wild world of cryptocurrency. The film has begun rolling out across digital platforms and is now arriving on Amazon Prime Video, giving fans a chance to see Grenier lead a new project for the first time in years.