Pure 70s Sci Fi! A standout. If you know the general vibe and staples for a 70s Sci Fi film then you know what you're getting here. This movie is full of attitude and atmosphere, as the set design, details, technologies, and pacing are just as important to the film as the plot. I've seen that many viewers are critical of the film's slow plot development but I definitely did not have any trouble with the pacing. Every scene is detailed with dialogue, an interesting set, and a variety of details that play out the tension of the plot. This movie really creates its own world and engages the viewer with the question of the threat and the possibility of its neutralization. I think there's a lot of great Sci Fi in this period, all dealing with techno-political environmental things (Silent Running, Logans Run, Soylent Green), and this is definitely one of those films that would influence influence future generations of movies. It is definitely worth your time.