"thinner" received mostly negative reviews from critics. the film holds a rating of 15% on rotten tomatoes, based on 20 reviews. the critical consensus reads: "a bland, weightless horror film that seems to want to mock itself as the proceedings drag on." james berardinelli gave the film two stars out of four, writing: ""thinner" could have been an opportunity to examine the ethics of a slick lawyer who refuses to accept responsibility for his actions. ... unfortunately, questions of morality are of secondary importance to a film that emphasizes its "death wish" aspects." owen gleiberman of "entertainment weekly" gave the film a d rating, writing: "like too many stephen king movies, "thinner" is all (emaciated) concept and no follow-through." a more positive review came from mick lasalle of the "san francisco chronicle", who called "thinner" "one of the better stephen king-derived movies."