this masterful, grand, but poorly acted sci-fi epic about humans fighting giant alien bugs has to much gore, blood, and violence for older teens or anyone who is easily grossed out. and, for hardcore film buffs, they will be offput by the god-awful acting and dialouge from the characters. but there is plenty of action to spare. this sci-fi invasion film is packed with wall-to-wall-to-wall military battles against aliens, with lots of blood and gore. although most of it is green, when the humans are killed, red blood flows and other graphic details, such as organs, can be seen. the bugs are shot at, blown up, and in one gross scene, have their probises sliced off. humans are dispacthed by slicing, impaling, decapitating, shooting, blowing up, ripped apart, and even have their brains slowly sucked out of their heads. amongst all the grisly violence are explosions, crashes, space battles, and a VERY disturbing hospital scene. during the non-violent parts, there is full frontal nudity of male and female butts, breasts, and crotches. the language is kept mild, with only use S word and one F word being the worst. people also drink beer and party.