By Brandy McDonnellAnother virtual call for extras has been issued for iconic filmmaker Martin Scorsese's long-awaited big-budget adaptation of "Killers of the Flower Moon," which is finally set to start filming soon in Oklahoma.Background Oklahoma, a division of Oklahoma-based Freihofer Casting, is still accepting submissions for the virtual call for extras.According to today's casting notice, filming on the eagerly awaited movie - which was delayed last year due to the COVID-19 pandemic - will occur from spring to late summer in the Tulsa, Bartlesville and Osage County areas.Set to reunite Scorsese with Oscar-winning icons Robert De Niro and Leonardo DiCaprio, the production is seeking people ages 18 and older of all ethnicities to be extras in the fact-based film, which is set in 1920s Oklahoma.People who attended one of the project's open casting calls last year do not need to re-apply, according to today's notice.Read more on NewsOK.com