Superman in film the script, giving it a serious feel with Christ-like overtones. Christopher Reeve was cast as Superman, having initially failed to impress the Salkinds before bulking up. Brando meanwhile, despite spending less than two weeks on the shoot, and not even reading the script until then, earned $3.7 million up front, plus 11.75% of the gross profits from the film. The film was a success both critically and commercially, being released during the Christmas season of 1978; it did not have much competition, leading the producers to believe that this was one factor in the film's success. Shooting of the two
Superman (1978 film) by 3M that would reflect light back at many times the original intensity directly into a combined camera/projector. The result was a very clear and intense photographic reproduction of both the actors and the background plate, with far less image deterioration or lighting problems than occur with rear projection. A technique was developed that combined the front projection effect with specially designed zoom lenses. The illusion of movement was created by zooming in on Reeve while making the front projected image appear to recede. For scenes where Superman interacts with other people or objects while in flight, Reeve and actors