This is a diverting alien invasion, parasite film that is distinctly a B-movie with a budget. It is fun way to waste a few hours and if you like this type of film this one is worth seeing. It isn't very intense and the film lacks any subtext or pointed political barbs. (The novel is a thinly disguised anti-Communist/Russian work)
It also lacks much of Heinlein's excesses and reactionary nonsense. The novel profoundly plays out like we must defeat space communism by becoming nudists! (Heinlein was a nudist) the film greatly cut backs on that notion. Largely gone too is the antifeminist nonsense of women manipulating men with sex. (Sam in the book has a series of "masters" besides the parasites) There's none of the gross orgies and absurdist violence that is in the novel. The film to its credit merely takes the most basic plot from the novel and runs with it.
I don't recommend people track this or the novel down. But if it is on at 1:30 in the morning, meh you might as well watch.
It also lacks much of Heinlein's excesses and reactionary nonsense. The novel profoundly plays out like we must defeat space communism by becoming nudists! (Heinlein was a nudist) the film greatly cut backs on that notion. Largely gone too is the antifeminist nonsense of women manipulating men with sex. (Sam in the book has a series of "masters" besides the parasites) There's none of the gross orgies and absurdist violence that is in the novel. The film to its credit merely takes the most basic plot from the novel and runs with it.
I don't recommend people track this or the novel down. But if it is on at 1:30 in the morning, meh you might as well watch.