I remember seeing this sci-fi movie in video stores on VHS but don't know the name. I'm guessing its close to late 70s but more likely an 80s movie. It's in color and I remember the graphics as decent. It's been some time so I'll give what I remember.
This is a movie that takes place in space.
There is a human (or at least appears human) male who seems to float around in a pod with a glass top. It looks like the cryo units in Alien but floats around. He seems to believe an alien or creature is his mother, who tells him the humans who arrive will kill him.
The movie ends with him and a female seen flying through space (he allows her inside with him) as the only survivors of some sort of disaster.