In my experience with blogging, generally if content doesn't resonate with someone, they don't take action. People will read a blog post or see a project and if they don't like it, click off the page. If something really upsets them, they will comment, but otherwise not.
Would recommend securing more than 2 backers, possibly by reaching out to friends and family. Most people should be able to convince at least 5 people in their own network to pledge at some tier of their campaign. I think you come off as genuine in your video, which is good. May want to add reward tiers that involve backers more in the outcome of the film/the finished product.
At the end of the day, take my suggestions with a grain of salt - the real advice should come from people who backed your campaign already (and why they did) or from people that are in your industry and care about this particular genre of film
Sal