Benamou also cites similarities between a script Welles wrote after returning to the United States, when he hoped to salvage some of the "Carnaval" footage, and another RKO film. "There is a notable resonance between the later version of the 'Michael Guard' script and the basic plot and setting of the high-budget "Notorious", directed by Alfred Hitchcock and released with considerable success by RKO in 1946," Benamou wrote. The plot involves two European Americans in Brazil, one of them a woman spy who discovers a clandestine Nazi operation. Finding it plausible that the Welles script may have been used, Benamou called for further research.