Spacesuits
When Walton goes into that room on the ship he runs into what he calls "spacesuits" [if I understood him correctly].....the spacesuits fit the typical description of aliens by abductees. It's kind of interesting because one of the criticisms I always had of the abductee stories is these aliens are walking around in our gravity, atmospheric pressure, breathing our air, etc, with no problem. And the filmmakers seem to be answering the critics there.
But the thing about it is: IIRC Walton said the guys in the ship looked like the spacesuit description (not the brown skinned guys that dragged him around and experimented on him in the movie).....did Walton ever say that he thought they were wearing some type of suit like that (that changed their appearance)? The movie differed from his description of what happened on the ship, so I assume this falls into that category as well.
Ignoring: MythicCDXX, Creeping Jesus/Judas, RonPaul_Lies, Digby (and aliases), ibestupid, Holiday_Hobo, sharon_18, TilaMoo, Okie-from-Muskogee/boo321, NorCalNik, Nullifidian