I don't know of a lot of filmmakers on Steem. Hive account@brian-rhodes has been absent for a while. Actor Hive account@basilmarples is posting about some of his project. Hive account@themarkymark posts a few movie reviews, as does Hive account@gooddream. Hive account@dedicatedguy seems to like horror. Hive account@riskdebonair is posting parts of a horror story. Some of your tags are a little specific, but look at #movies #horror. You may find people commenting on such posts who may appreciate your work.

If any of your cast and crew want Steem accounts then let me know and I can create them as I did for you.