It's real. I Watched the flight a couple of weeks ago from the flight line at Grant county airport Moses Lake Wa. Any Big Bend grad will recognize the airport and school in the background. They used a helicopter for the shots from the air. Was very cool to watch. We had no idea what was going on at the time and just thought this was part of a normal test flight.
Boeing does much of thier flight test flights here to Moses Lake. So we see theses guys fly in and out all day as we mix it up in our little single engine B19s.