Anthony D'Alessandro Editorial Director/Box Office EditorEXCLUSIVE: Trolls franchise filmmaker Walt Dohrn has inked a multi-year deal with DreamWorks Animation, Deadline has learned.A longtime DreamWorks talent, Dohrn will have an overall first look exclusive deal for original animated projects at the studio along with executive producing, directing, development and supervisory duties on various projects.“For over ten years, Walt has been a key part of the DreamWorks family,” said DreamWorks