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A film (rented VHS I think) from the late 80' or early 90's, some kind of pods found their way (don't remember how) into an spaceship heading for earth. These pods were egg/walnut shaped and orange/brown and approximately the size of a basketball. In these pods there was a small machine with tools that could use material from surrounding environment to build some kind of robot/cyborg. I remember that it used a human body as a base to build this robot/cyborg. Some people were trying to stop this ship from reaching earth but in the end it crashed and then you saw at least one surviving pod. I think Martin Landau was in the film but I may be mixing things up.