Naturally, there's an onboard flirtation between shapely space-gal Nora Hayden and astro-hunk Gerald Mohr (who inexplicably spends the last half-hour with his hairy chest exposed), while Les Tremayne and Jack Kruschen play the stock characters (respectively) of elder scientist and blue-collar engineer--the latter toting an "ultrasonic freezer gun" that forces attacking monsters to chill out. If that's not enough to whet your schlock-movie appetite, the scenes on Mars were filmed in a gimmicky pink-hued process called "Cinemagic," which resembles a negative image covered in Pepto-Bismol. Is this any way to spend 83 precious minutes? Look at it this way: When an angry Martian warns humans to stay away ("you are technological adults, but spiritual and emotional infants"), you may be laughing enough to make it all worthwhile. --Jeff Shannon