There’s an adage in writing that goes “Write what you know,” but I think it should more properly be phrased as ‘Know what you write.’ It isn’t about sticking to things you already know but knowing and understanding your subject well enough to write honestly.

One of the short films at this year’s Horrible Imaginings Festival brought this home to me.

In the film Vicious a family of urbanites are in the lonely rural south when they become guests of an odd local family that invites them for dinner. The film starts off looking as though it is going to be a rather bog standard ‘folk horror’ about the strange and scary people found in the countryside but the filmmakers invert the paradigm and end of a rather different note.

What might have been a fun reversal of a trope felt flat and inauthentic because the filmmakers did not know what they wrote. When visiting a culture not your own it is important to get people who are deeply familiar with it to help you in avoiding simple mistakes.  Here are two of the most glaring examples from the film where inaccuracies damaged my enjoyment.

First off, in the south you do not have dinner outdoors shortly after dusk. Californians might think of this time as pleasant, the cooling air, the breeze heading towards the sea, but California is dry and the south is wet and filled with mosquitos. A table outside is setting a table for those biting insects.

Second, if a Southern family invites another for supper, particularly is this Southern family has a large lovely brick home, the meal they set out will not be a plate of beans and nothing more. Southern culture is a very food centric one and the offerings would have been numerous both as a matter of hospitality and of pride.

These may feel like small errors but they destroy the credibility of the film, yanking audience member who see them out of the tale and shattering the illusion. It is always vitally important to ‘Write What You Know.”