While The Lord of the Rings was being filmed, Viggo Mortensen (Aragorn) would hike for days to the filming locations, in costume with his sword, in order to appear authentically travel-worn.
His neighbors called the police on him because he would practice his sword moves in front of his house.
He kept the horse that he rode during the film, too, and the crew said he'd spend hours in the barn bonding with the horses before filming.
Amazing actor.
