Here is what I know so far.
A film crew was shooting some landscape B-roll footage with a drone just outside Beaver, Utah. The footage was for a documentary film that was/is in production. After filming the two men eventually return to their hotel room and start to scrub through the drone footage. They noticed this anomaly that seems to be moving really fast and past the drone.
According to the two men, Sam Chortek and Jimmy Chappie, the footage was shot at 60 frames per second and was filmed back in 2016. The footage was captured with a DJI Inspire drone. The footage is just now being released. The men estimate they were 400 or 500 feet from the drone and never saw or heard anything.
Beaver, Utah is roughly a 2 plus hour drive to the outskirts of the famous Area 51. That is not really that far away in an aircraft.
First let's take a look at the footage, here it is: