JEEZUM CROW: WHAT DID I JUST NOTICE IN THE SECOND DISCLOSURE DAY TRAILER?

It's not the Roswell flying saucer ...

Or a film slate just before the saucer that references, "Occupant" and Roswell, NM as well as BG/RAAF ("Bomber Group/Roswell Army Air Field"?) that immediately makes me think they are filming some recreation, a PSYOP maybe. Does the military use slates like this to record events in the field? Doubtful. It just looks too much like a Hollywood-style fake. Cue a very young Stanley Kubrick?

But that's not it either!

What I noticed was a gloved hand of a person who appears to be invisible to the the two main characters holding hands:

The hand quickly withdraws in a puffy blur and we then see that they are sitting in a room that looks like a medical testing laboratory, which they may or may not be aware of (with the gloved figure lurking behind them):

This sequence just seemed weird to me -- as if the characters were unaware they were part of some kind of experiment. Of course, there's not enough to be certain about this. It's possible that this is an experiment for which they've volunteered and it allows them to "see" something they otherwise wouldn't.

Now I'm again channeling the hidden world of Midnight Special ...

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SPECIAL NOTE

In case you were wondering, "Jeezum Crow" is Maine's favorite local expletive. If you use it, be sure to pronounce it right (think "Jesus Christ" and you'll sound just like a native).