 Controversy and dispute surrounds the history of the movie.  According to recent interviews, John Seitz, the cinematographer,  confirmed that the film was planned in great detail to be filmed in  3D but that the last minute it was discovered that no camera was  available. Nonetheless, it is claimed that all of the sets were  constructed at Republic Studios to be shot in 3D and that the  artificial separation of set elements is confirmation of this design  intention. Meanwhile, the only documentary evidence for a 3D  production is a claimed newspaper advertisement placed by the  producers (not the studio) while the film was in pre