In the darkly comic psychodrama “Nancy, Please,” Will Rogers stars as Paul, a PhD candidate at Yale who is struggling to complete his dissertation. But after moving in with his girlfriend Jen (Rebecca Lawrence), Paul realizes that he left his vital copy of Dickens’ “Little Dorrit” at his last apartment. He grows increasingly desperate as he tries to retrieve the book, which he needs to finish his thesis, from his casually sinister former roommate, Nancy (Eleonore Hendricks). “I was of course really thrilled, particularly because it’s Tribeca,” casting director Rori Bergman says of the film’s inclusion at TFF. “To have it premiere here in New York, where the whole team who worked on it can be a part of this next step, is especially exciting.” I spoke with Bergman about casting independent films and finding the remarkable cast of newcomers in “Nancy, Please.”