This is a presentation for the last Digital Culture and Communication ECREA Workshop, held in Bonn on the 3rd and 4th of October, 2013. Presenters were Talia Leibovitz and Antoni Roig (that's me, actually). Here, we outline a part of Talia's PhD research focused on film crowdfunding practices, attending to motivations of project promoters and backers through a survey addressed to users of crowdfunding platforms, particularly in Spain. In this occasion, we are pesenting some conclusions regarding the perception of the relevance of the rewards in the crowdfunding process