The US film industry's first big gathering since fires devastated Los Angeles will begin Thursday at the Sundance festival, where highlights include a glitzy new Jennifer Lopez musical and a dark Benedict Cumberbatch drama.

Hollywood's annual pilgrimage to the Rocky Mountains to premiere the coming year's most-anticipated indie films is taking place in somber circumstances, after the blazes that killed at least 27 people and brought the entertainment capital to a halt.

Festival chiefs held lengthy talks with filmmakers, including those "who lost homes or were displaced" by the blazes, before deciding to press ahead, said Sundance director Eugene Hernandez.

Organizers heard "harrowing stories of people running out of their homes, evacuating... with their hard drives under their arms" to ensure their films survived, he told AFP.

"Everybody to a person just wants to look forward and wants to look ahead... it'll be a nice moment of reunion and community."

Among the 88 features being screened in Utah's Park City is "Rebuilding," about a rancher who........

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