Almost more importantly, those who support your project probably represent 100 to 1000 times the number of people in the potential audience for the film, in this case.
Within hours of putting it up, Dany Boy - the film received a $100 donation which goes towards casting costs. The supporter will receive a few perks, like an autographed DVD and one sheet of the film.
I'm amazed and gratified by this kind of support and it's given me a real confidence boost as I push forward into the financing phase of the film.
Hope you check it out and consider helping us!