>The Thing (the one you know of—though the other had a longer title anyway) was a remake.

I think it's more accurate to say they're both based off the same 1938 novella: "Who Goes There?" by John W. Campbell. The 1951 movie "The Thing from Another World" is a very loose adaptation because it omits the most important plot point of the shapeshifting alien imitating people. The 1982 movie "The Thing" is a closer adaptation that includes it. This makes it a much better movie even if you ignore the improved special effects, because the drama of the characters not knowing who's really the Thing is a big part of the appeal.