No.Is it possible that Dead Man was shot in Super35? A lot of independent productions in the 90's shot super35 to save money
Back when the workflow was entirely on film, Super 35 would not be used for a film intended to be seen in 1.85:1. Super 35 was a way of achieving a 2.39:1 ratio without the need for anamorphic lenses, with the benefit that a 4:3 aspect ratio could be extracted for video tape or television without cropping. Super 35 required an additional printing step to compress the image so it would be unsqueezed by anamorphic projection lenses, a step not needed when shooting with anamorphic lenses. Due to generation loss, this would have no benefit whatsoever for a movie framed for 1.85:1.
However with digital intermediates, movies can be shot with a three-perf pulldown, which has a 25% savings of film. The native ratio of a three-perf pulldown is 1.78:1, from which one can extract 1.85:1 or 2.39:1. However, this can only be achieved with a DI, as 35mm projection is standardized as four-perf. For example, Van Sant’s Milk was shot in three-perf Super 35 with an intended ratio of 1.85:1, but a digital intermediate was needed in order to make prints.