Although the son plays a convincing junkie, overall the performances are uninspiring - DeNiro has been much better in other flics. The picture quality is so-so, and the soundtrack is definitely not Dolby's best effort. The plot and story drags on for well over two hours to a predictable and sappy finish.
In short - probably not worth renting, and definitely not worth owning - a real snoozer. 5/10 is my rating.