(Decanter) - Celebrated Californian wine Screaming Eagle is a Napa Valley grand cru, not a cult, according to the winery's general manager. In a rare visit to the highly secretive Oakville producer reported in September’s issue of Decanter, Adam Lechmere discovers that the c-word’s connotations of excess don’t sit well with general manager Armand de Maigret. ‘No-one calls us that [a cult] any more,’ de Maigret insists. ‘We’re a grand cru – a Napa first growth.