The Blurry Line Between the Film and Creative Director

Summary: At times, especially in the agency world, we run into creative directors who are just one step away from leaving AdLand to go to Hollywood. On the flipside, there are movie directors who often take a break from the Hollywood dazzle and entertain themselves with quickies in AdLand. Both directors require extraordinary talent, management, and vision. But will there ever be a time when one could replace the other? Or are they in fact one and the same, just a variation?