I'm supposing that our Mars probe is considered an invasion. So the Martians are fighting back the best way they can in The Day Earth Invaded Mars.Kent Taylor and Marie Windsor who play a top NASA scientist and his wife are the targets of the Martians who have invaded earth avoiding detection and are replacing Taylor and Windsor with body doubles. All this to make sure probe reports zero life on Mars.These two movie veterans look pained throughout this most tepid science fiction film. The rest of the cast looks similarly bored.One thing I can't figure out, how did Taylor rate the mansion he and the family were living in.

This movie is about as exciting as watching paint dry.I have watched most of the classic 1950s and 1960s sci fi films. You make allowances for their severely limited budgets. The special effects are usually primitive and the acting always seems to smell slightly of ham". Even the worse of these films seems to have a certain period charm.This movie is NOTHING like that.NOTHING much happens in the first two thirds of the film. The average viewer is likely to fall asleep the pacing is so incredibly slow. I kept wondering if the Martians planned to BORE the Earth to death.If you are having trouble sleeping, then watch this movie.... it is certain to put you to sleep.

The plot, very briefly, involves men from Mars who want to stop Earth from exploring their planet. The Martians travel through the galaxy to inhabit the bodies of a scientist and his family - that is, there is the "real" scientist and his family, and then there are their "body doubles" (the Martians, carrying out their mission). On top of this grave threat to humankind, there is a subplot as we view a crumbling marriage between the two leads. But I wondered if anyone who saw it really cared about them since it was definitely a B-picture. (Kent Taylor and Marie Windsor star as the scientist and his wife).There were some truly creepy moments in the movie, though. Claire Fielding (Marie Windsor) learns from her son that there is an open door on the estate property where the family is residing. She goes to lock it, then hears movement around her. She becomes scared and hurries on. Suddenly her husband is standing there, with a look that is malevolent. "Where are you going, Claire!" he asks in an a threatening voice. We the audience know that it's really a Martian, but we watch from the point of view of Claire, who's never seen her "husband" this way, and the effect is unsettling. Another weird scene involves the daughter and her doppelganger - the doppelganger looks at her with evil intent. Not to mention what the daughter's doppelganger does to the young love interest of the daughter. As for the rest, watch and find out.This film is better than its low rating, and I'd say if you like those low budget scifi's from the 50's and 60's this one is definitely worth your time.

Another body-snatchers plot but done well.Better than average black and white B sci-fi film that is elevated above many of its cousins because of wonderful acting, interesting cinematography, and a solid score by Richard LaSalle. The subplot of the marital troubles serves to make it something more than an s-f film and, as others have said here, the techniques of the direction make it feel more like a horror film.What struck me was how different it was from movies of a similar ilk made just four years prior. That the marriage of the lead scientist is in trouble (in a believable way, too) is one aspect of this, but so is the downer ending. In every B film I can think of from the 50's, the aliens are repelled. Here, they win, and the deaths of the good guys are rather unpleasant. If I were in a film class, I could write a long paper about this change in tone and what, in film or society, might have influenced it.It is slow moving by today's standards, but between the score and the fine acting, it didn't feel slow to me. I'd watch this again and find new bits to enjoy, I have no doubt.