Dueling Wyatts, 2017
This 16mm film features an actor who plays Wyatt Earp in the Tombstone, Arizona reenactments of what is known as "the most famous gun fight in American history". (Ironically, this gun fight was, in part, due to disagreements on newly regulated gun laws.)
While the actor repeats a similar routine of gun showmanship, the film is double-exposed, resulting in two Wyatts overlapping in space and time.