What Marvel Has To Change if They Hire Ava DuVernay Call it the Wright-Jenkins Problem. It’s the state of tension between Marvel and a director with a strong vision. Obviously it’s not something unique to the superhero studio (directors have been leaving projects over “creative differences” since cameras were invented), but this particular problem is inherent in the way that Marvel has done business since launching Iron Man. Contrary to the current narrative, the issue of clashing directorial minds doesn’t stem from Marvel wanting or calling up work-for-hire filmmakers.