Great nudity!

Everytime the scientists had to strip down to undergo a sterilization/medical procedure in the beginning, they showed James Olson's body.

His body was a pleasure to behold (and - no - it's no stunt double since you can plainly see his face and CGI-dubbing was not possible back then).

There's a line in the movie "Look at his butt!" that is said elsewhere in the film, but it more properly addresses the great shot of Olson's bare-ass.

"Don't call me 'honey', mac."
"Don't call me 'mac'... HONEY!"