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

[Q]: formula 51 promises a new kind of high but delivers the same old bad trip .
[A]: negative


[Q]: the film starts out as competent but unremarkable . . . and gradually grows into something of considerable power .
[A]: positive


[Q]: if the real-life story is genuinely inspirational , the movie stirs us as well .
[A]:
positive