"Planeta Bur" is about cosmonauts who are lost on Venus, attempting to return to the spaceship, and their adventures along the way, which include encounters with prehistoric reptiles, a volcano, and other perils. Like Ptushko's "Sadko", this is a true gem of fantastic film. The use of natural and artificial sets is very effective in creating an atmospheric, alien world; the monsters (an intelligent robot, a carnivorous plant, pestiferous lizard men, a pterodactyl, and some other dinosaurs) are similarly well done. Unlike American films of this kind, there is no emphasis on macho violence or digressions into "steamy" romance scenes; instead the film concentrates on the lavish visuals in an unhurried and dignified pace. My only complaints are that the introduction is too long and slow-moving, and that the subplot involving Masha's agonizing over the fate of her comrades isn't very interesting; but the scenes on Venus, which comprise the bulk of the film, more than make up for these flaws. "Planeta Bur" was drastically edited by Peter Bogdonavitch and released in the States as "Voyage to the Planet of Prehistoric Women"; two versions exist, one with footage of Mamie Van Doren leading a tribe of telepathic Venusian women and worshipping the pterodactyl of the original film, the other without Ms. Van Doren or any of the prehistoric reptile footage.