Thinner suffers from some acting issues. It's true that Joe Mantegna really helps, but he can't fix the subpar story or the somewhat silly scenes throughout the film. The ending was also hard to really take seriously, despite it being somewhat dark.
What are your thoughts of this film based off a Bachman (Stephen King) novel?
(http://www.fight-evil.com/movies/years/1996/451-1.jpg)