Although Doran William Cannon is credited as the screenwriter of Brewster McCloud, the production quickly became an exercise in auteur override. According to production histories, most of Cannon’s script was rewritten by Robert Altman and his close associates on set, with large swaths improvised during the eight-week Houston shoot (May 22–July 15, 1970). The dispute moved beyond closed-set frustration: after the film’s release Cannon broke ranks with the usual private complaints and penned a column in The New York Times detailing the frustrations of his experience—publicly exposing the creative tug-of-war behind the credits. That column turned what might have been an industry whisper into a visible skirmish over authorship and credit at a moment when New Hollywood directors were asserting unprecedented control. The public airing harmed relations between traditional screenwriters and the new generation of director–producers; it also became a cautionary example about screenplay credit, on-set improvisation, and the thin line between collaborative revision and perceived erasure of an author’s work.
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