Hmm. Not familiar with that one. But I saw 'Invasion of the Body Snatchers' with my folks at the drive-in in (McCarthy era) 1956. Had popcorn and everything. The decades later remake pretty much sucked. (Uh oh; there I go revealing my sources again....)
If you've slept since capturing their "essence" and didn't become zombie-like, then they were not nascent pod people. I commend your excellent & fearless photography.