It doesn't happen without a branding and marketing plan. If your "plan" to make your investors' money back is to get distribution, that's no plan at all. Distribution simply means that your film is made available on platforms for people to see. It doesn't mean guaranteed return on investment. Making money with any product (film or otherwise) requires a strong attention to the product you're selling (brand, packaging), the price at which it's sold (cost per view, rental price, purchase price), the place it is distributed (SVOD, TVOD, AVOD, theatrical, etc), and the promotion to make audiences aware (advertising, publicity). If you don't have a branding and marketing plan, you're asking for a donation, not an investment.