I’m trying for many years to find the title of this movie, which I watched on tv during my childhood (1980’s). I first assumed it was Dune, but was never able to find such scene in it.

It’s a sci-fi / fantasy type of movie, set in a desert-like place. A lot of dunes, wind, etc. It remember it having an old feel for the time, so maybe from the end of the 1970’s?

The scene I remember involves a worm type monster (hence the Dune thoughts) that lived in a hole surrounded by the dunes. The main characters/heroes had to be careful not be dragged by this worm (tentacles?) back to its hole/den. This happens with one of the main characters, and I never forgot him being dragged screaming by the foot to the hole in the sand.

The worm, or tentacle, was not large but long, more like a snake.
I also seem to remember it being in the future, or maybe the characters had suits/astronaut gear.

Thanks! 🙂