After being rumored to be on the shortlist of directors for Bond 25, Hell or High Water filmmaker David Mackenzie has set his sights on a different spy franchise, as he's in early talks to direct Jett Day for Warner Bros., Collider has exclusively learned. Written by Ozark creator Bill Dubuque, Jett Day follows a black ops agent on a mission to prevent a newly-discovered diamond mine from falling into Russian hands. Dubuque is expected to produce alongside Jon Berg and Zero Gravity's Mark Williams. Warner Bros. executive Kevin McCormick will oversee the project for the studio. […