Ah, yes, underwater sci-fi (and horror). From 'The abyss,' to 'SeaQuest,' to 2020's 'Underwater,' and everything in between, the niche genre has been a darling of enterprising filmmakers and studio executives. Reliably solid production design and art direction, robust effects and enticing designs for any associated creatures or entities, large casts, swell scores from well-known composers - 1989's 'Leviathan' fits the bill neatly. It really does look and sound great, and one notes what seems to me to be a fairly large budget to capitalize on what was at the time quite a trend in film. I'm not saying it's the most wholly engaging and essential of pictures, but this is a pretty good time all the same.

To repeat myself a bit, the contributions of all those behind the scenes are terrific. Costume design, hair and makeup work, effects practical and digital, props and weapons, set design and decoration, lighting, and all other such elements are superb; the facilities of the mining operation are a feast for the eyes. Direction, cinematography, editing, and the fundamentals of film-making are tight, with fine production values. There are recognizable names and faces among the ensemble, and I think everyone on hand gives swell performances.

More substantively, I think the screenplay is pretty capable in general. Characters and dialogue sometimes leave a bit to be desired, but the narrative is pretty strong, even if it's familiar in broad strokes. The scene writing is the best part of David Peoples and Jeb Stuart's contribution, with light humor in the suitable exposition that quickly gives way to growing mystery and mounting horror. And that's really the key: one could assess every little aspect day in and day out, but at the end of the day the real question is how effectively the sci-fi horror is realized - and in my opinion it's splendidly strong in 'Leviathan.' Yes, one can immediately discern clear inspiration from very famous previous titles, in multiple instances to the point of pure mimicry. That's a sure mark against this, but taken in and of itself the marine monster movie is stimulating and satisfying. The picture is filled with tinges of body horror, flashes of action-horror, and an abundance of creature feature fun. All the blood and gore, prosthetics, and fabricated creature effects are outstanding; for the strength of these alone I'd say 'Leviathan' is worth watching.

What it all comes down to for me is that by and large I think this is perfectly entertaining, with fantastic exploration of what sci-fi horror could be in the underwater setting. While it's imperfect in the first place, the biggest limiting factor is simply how how the picture undeniably borrows. If you've seen John Carpenter's 'The thing,' and if you've seen Ridley Scott's 'Alien,' then there's no small amount of George P. Cosmatos' 'Leviathan' that's going to feel recycled. It looks, sounds, and feels good, but the comparisons are so significant that they distinctly distract and detract from the viewing experience. I suppose on that note that the good news is, if you're approaching this with virginal eyes, it's going to be better still. For whatever issues it may bear, though, this is still a flick that's a sturdy recommendation for fans of the cast, and for the genre overall. So long as you don't mind abject parroting, 'Leviathan' is satisfyingly enjoyable, and not a bad way to spend 100 minutes.