Try going to your game data utility on the PS3 and deleting the patch data (not the install data) and re-downloading the 1.02 version of the patch again. When I tried to download the patch initially it just hung on a black screen, deleting v1.01 solved the problem, hopefully a similar effect will occur for you as well.
Mine will play all the way up till i get to get away truck after bank robbery and stays on loading screen. I know its not the disc because it's brand new. HELP!