I had this thing for Cladia Christian since she first appeared in The Hidden (1987) and then later on as Susan Ivanova in Babylon-5 Hotwater
"Back in the day" The opening scene from BARBARELLA was so eye-opening for a young lad https://www.youtube.com/watch?v=Tw6WMdrzbJw"]barbarella opening titles - YouTube
I can't believe I forgot this The scene with the 'biting' dolls has given a few people I know nightmares, still...
My fave woman from a sci-fi movie is Jenny Agutter from Logan's Run.I don't know if this is very well known in the USA but it's often shown on British tv and I've seen it loads from when I was a kid.Every time I saw it I always found something new in it and actually thought new scenes were being cut into it each time it was shown by some crafty editors as a kind of mindfuck.She is so sexy and has a beautiful voice.