Produced in 1966 this movie is supposed to take place in the future when space travel is more advanced than it is today. So, when a communication is received by an alien race requesting a meeting the earth is only too happy to oblige. Unfortunately, the alien spacecraft crash lands on Mars and so an Earth spaceship is sent on a rescue mission. They eventually find a female alien and head back to earth with her as a passenger. What they don't realize is that she feeds on blood. At any rate, since I have a softness for films made during this period, I found this movie to be somewhat entertaining even though I suspect that other viewers may not like it so much. For starters, some people may feel that the special effects were elementary by today's standards. And they would be correct. So, some people may have to make allowances. Likewise, I believe that there were some portions of the film that were unnecessary and could have been written out of the film all together. For example, I don't believe that two additional rescue spaceships (one alien and one human) needed to be included. Same thing with the time spent showing the rocket ships in space. But that is just my opinion. Still, it was an interesting film and I believe that this is one of those rare movies that could justify a modern remake.