If you look at film video projects on Kickstarter, it's mostly documentaries - for which this model works OK because documentaries are often about something that has an interest group already attached, as well as much lower production costs and quality expectations - short films, which are raising small amounts and generally just using Kickstarter to funnel donations from friends & family, or instructionals, which aim to produce educational content. It's not at all good for feature films. There are some crowdfunding sites that are a bit better but the more friendly they are to features the more likely they are to be targeted within the industry. I laid out some reasons in another post above, I should have mentioned that those are all narrative feature-specific things.
