Star Wars producer Rick McCallum says some of the films' fans are "seriously deranged."
But he says they are "what makes Star Wars work."
And he says the Star Wars producers "love them dearly."
McCallum admits the title of the new film, Attack Of The Clones, has come in for criticism from some fans.
But he says some fans also originally thought The Phantom Menace and A New Hope were silly titles.
He says they eventually grew to like the names.
"That's part of the fun of it," McCallum says.
"There is a group of people who are seriously deranged, and who we love dearly. That's what makes Star Wars work, in a strange way."