Child, I saw a movie that I don’t remember at all. It’s a black and white sci-fi movie, where astronauts / pilots (to the numbers of three or four but there is no woman) arrive on a desert planet of sand. In real time, the captain can speak by telephone / radio to his superior. But the problem comes, as the film progresses, they disappear, one by one, because creatures (i believe some kind of sand snake ; a little like beetlejuice) hide by moving only under the sand.
Ps : There is no robot or android. . And it seems to me that the movie begins directly with the arrival of the ship on the planet.