Classify given movie review into two categories: positive, or negative based on its content.

an instant candidate for worst movie of the year .
negative

the actors improvise and scream their way around this movie directionless , lacking any of the rollicking dark humor so necessary to make this kind of idea work on screen .
negative

the film is exhilarating to watch because sandler , liberated from the constraints of formula , reveals unexpected depths as an actor .

positive