Trailer Clues - LOOK CLOSELY

Not sure if this has been mentioned, but if you look at what seems to be "historical" footage of the astronaut in the space launch and the pilot from the speed of sound flight, they both have something in common. When you slow it down, they both seem to be McConnaughey. He is traveling back in time to these key junctures in human limit accomplishments and becoming a part of them....or...he could be dreaming them.