Saw this show or film in early 90s or earlier. It was probably from the 70s or 80s. Not sure if it was black and white or color. There was a spaceship. Somehow this little metallic poison worm thing got on board (I think it was gold). It may have been put there by enemies wanting to invade or sabotage the spaceship. I think it killed a few people. It may have been a robot. The worm thing could also have been alive, or maybe was even a mini spaceship with small people inside. I think it may have entered a room through a vent. Don’t really remember anything else. It was definitely in English.

This is a movie or TV show I saw at a friend’s house around 1990. The scene I remember shows a man on a street when it is about to start raining (or maybe some kind of gas is coming). For some reason people need a gas mask or oxygen mask to survive when it rains. An old lady doesn’t have one and the man offers to share his. I think it was in a future setting where this was just a normal weather event. I think this scene may have been near the beginning of the movie/show. This is all I remember, and I could be wrong  about any of the details. It’s been bugging me for years. Someone please help.