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

Input: Consider Input: a fantastic premise anchors this movie , but what it needs is either a more rigid , blair witch-style commitment to its mockumentary format , or a more straightforward , dramatic treatment , with all the grandiosity that that implies .

Output: positive

Input: Consider Input: the film fearlessly gets under the skin of the people involved . . . this makes it not only a detailed historical document , but an engaging and moving portrait of a subculture .

Output: positive

Input: Consider Input: spielberg is the rare director who does not want to invite viewers to gawk at or applaud his special effects . he just wants them to be part of the action , the wallpaper of his chosen reality . here , thankfully , they are .
Output: positive