The fourth season continues the "Medellin" plotline as production of the film finally begins. Conflicts quickly arise when E admits to being dissatisfied with the first cut after Walsh reluctantly agrees to a midnight screening. Vince and E subsequently clash over the creative direction and financing of the film in an arc which escalates through the season. There is much contention over the ending of the script, and Stephen Gaghan is brought in briefly, at which point Walsh comes up with what he believes to be a good ending.