Amazing! This movie scores a perfect cheese rating! It has everything a person will ever need to satisfy their cheesy film cravings. Let's look at the various aspects of this movie bit by bit, so that we may better understand the genius minds that created it.

Dialog: This movie has horrible "jokes," dramatic lines, and even a close-up of a woman screaming. Here's some samples:

"Everytime he lays eyes on you, he begins to float... even though the ship is equipped with artificial gravity!" This was followed by horrible forced laughter.
"Well, we first saw a dark shape moving near the ship, so we started shooting at it." It's a dark shape! Kill it!
"Another name for Mars is... Death!"

Sexism: The crew is made up of several men, and two women, who are the doctors on board. That's a pretty noble profession. These young ladies spent eight years in space-college just for the chance to make a difference and help out their fallen comrade. So, it shouldn't surprise you at all to know that on top of examining the dead bodies which quickly add up, they also serve coffee and clean up after the men. Check out the picture below. Their uniforms are nothing more than glorified waitress garb.

By the year 1973, the feminist movement had died off.  More coffee, hon?

Logic: The logic of the characters is just goofy. One problem is firearms. See, at one point the creature is hiding in the ventilation ducts (an Alien inspiration, perhaps?) so, the first thing they do is send a guy in. When he sees the alien, he begins firing his gun at it-- in the all-metal ventilation ducts. Next, they decide to rig up a bunch of grenades all over the ducts' opening, which detonate yet don't seem to hurt the ship at all. And they even fire a bazooka at it, at the very end. Sheesh! In another direction, this movie, like many other 50's films, has one character which seems to be able to theorize and come up with all the answers. He tells us that it's possible there used to be an advanced civilization on Mars, but they were destroyed by war. The survivors must have become uncivilized, and that is what "It" is. Because that's clearly the most reasonable explanation, given the evidence (none).

Overall, this is a fun-tastic movie. Its story is entertaining enough to actually want to keep watching, and the characters are corny enough to laugh at every other minute. I leave you now with some of the original taglines.

IT! ... Reaches through space! ... Scoops up men and women! ... Gorges on blood!

The revelation shocker of things to come!

$50,000 by a world renowned insurance company to the first person who can prove that "It" is not on Mars now!