The late actor
Walker, who died in a single-car crash over Thanksgiving weekend, "had already shot his dramatic scenes and most of his action for 'Fast & Furious 7,' " the update says, and the film has since resumed shooting.
"Caleb and Cody are helping us complete some remaining action for their brother and fill in small gaps left in production," the update says. "Having them on set has made us all feel that Paul is with us too."
Walker's brothers bear a striking resemblance to him, as photos from a recent family wedding show.
Universal will release the film April 10, 2015, nine months after the original July release date.
"We came together and all felt the only choice was to continue," the update says. "We believe our fans want that, and we believe Paul would want that too."