The character of Jack Kirby (played by Michael Parks), shown briefly as the artist of the storyboards for the potemkin movie, is the same Jack Kirby who was a pioneer of the American comic book industry and a co-creator of such seminal comic book characters as Captain America, Iron Man, The Hulk, the Silver Surfer, and the teams known as The Avengers, The Fantastic Four, and The X-Men. Kirby did indeed create storyboards for the adaptation of Roger Zelazny's novel Lord of Light, which were used as "proof" of the movie production during the real-life "Canadian Caper."
I think they mentioned him by name, or at least 'Mr. Kirby'. I remember going "huh" but it was such a great sequence I had forgotten it till reading that. If you haven't seen the film yet, you really should before it's out of theaters.