Instruct: Classify the given review into positive or negative sentiment.
Query: Pretentious, Unrealistic & Lame

Maybe the book was better, but the movie was pretentious and very unrealistic (I'm a veteran). Apparently, this guy reluctantly becomes an elite sniper even though he'd rather be doing nothing at all. Then he goes to Iraq and almost does something but then doesn't. Somewhere in there he and all the other marines strip naked and jump around. Yeah, sure, okay. The remainder of the movie is filled in with shots of walking through smoke in the desert cuz the oil wells are on fire. Again, nothing actually happens. A complete joke of a movie.