Hi guys! I'm new here, as u can see...
Navigating through some topics I could see that you are making miracles here, remembering many difficult and old movies! This is nice!
So, here's my challenge: one I watched this movie of a terrestrial crew that came into a planet (I don't remember the whole story, but today I still have some scenes in my mind) and one scene one guy gets his arm chopped and when it falls to the ground many worms start eating it, and one of the worms grow very fast until it involves a girl (which is with this guy) and then eat her!
In other scene, another old man (I believe a experienced astronaut) goes down through a big hole attached to a rope. When he is going down we can see many tiny holes in this big hole's wall that many alien hands get out to suck the man's blood (the hands touch him in the head/arms and start to suck blood). The old man can get rid of the first wave of alien arms (with mouth in the palm to suck) by chopping them, but then they are too many and ends up killing it).
Well, this is so far the best I can give of details. If you can find this movie, I'll be deeply grateful!