Some elements of the movie are quite unbelievable, but the movie is clever enough to approach them gradually and only after achieving buy-in from the audience. What with the delicate balance of comedy and drama, when the girls start duelling with staple guns you truly aren't sure whether somebody's going to get terribly hurt or not. I've never been a fan of Dana Ivgy, sullen and sulky as she always looks, but the role here fits her; and it's a nice script, divided into ostensibly separate chapters but surprising the audience with links between them and not ending before even the shrewish valkyrie of a desk officer has been vouchsafed a moment of sympathy from the audience. If Nat Hiken were alive, I think he and his creation Sergeant Bilko would approve.