The trailer shows some apparent racism against Arabs in the army, although the way it was edited it is hard to know if the filmmakers deliberately made it sound worse than it was - army buddies will use very dark humor, for example.
More in Hebrew here. Hebrew trailer (different scenes) here.
English-language review here.
UPDATE: A reader emailed me:
The comments you're referring to are from Mishmar HaGvul (Border Patrol) soldiers, if I'm not mistaken. Probably Druze, not Juze.