What movie was this? Old campy sci fi movie, probably b/w, a group of scientists (?) traveling down through a planet (earth?) in a shaft and they pass a copy of themselves in another shaft going up. The second group is trying to wave them off, to go back, but to no avail.
They say that elephants never forget, so what movie was that, Mastodon?
@VisualStuart
My first thought was a Twilight Zone episode.
@scuttlefield I didn't come up with anything Twilight Zone that fit from searching. But thanks all the same.