I have made some experiences with crowdfunding. There are 3 very important things you should know about it.
the crowdfunding platform is doing nothing for you beside being helpful setting up your profile. In the case you don't get pledged with in 48h by 75% of what you asked for your campaign will disappear in the archive and barley people will find you and your endeavor.
your campaign needs to be solid. the times were you just sit and talk about your project is over. If you want to impress and get people to fund your project you should be prepared to deliver some kind of movie trailer in the style of BBC Earth or any other movie blockbuster. You need people want to make it happen. If they can get something out of it ( t-shirts etc. ) and they have the impression their submission is appreciated that would be the best case.
last but not least. The success of your funding is depending on your marketing. There are several companies on Kickstarter who got funded with several millions of dollars. Cool right? Well FYI some of them spend up to 750K just to market their campaign through professional agencies.
Hope that helps ... good luck