What are the three different types of credits that writers can get on a feature film?”
From the way you phrased the question, I’m guessing you either already know the answer or are trying to get us to do your homework for you. Well, I’m not going to make it that easy, because there are more than three. The easiest type of credit is “written by”. This means that the people or teams working on the film wrote everything, based on original material. The “written by” credit can be split up into “story by” and “screenplay by” if different writers/teams came up with the plot and the dialog. Per WGA rules, the person/team writing the original script is guaranteed at least a shared “story by” credit. A “screenplay by” credit can also be awarded if the work is based on a previous work – a novel, play, earlier film, comic book, etc. “Screen story” is a bit more complicated, and not very common. It means the film is based on an existing story, but the story actually used was original — for example, only characters or settings from the original material were used. More unusual still
