There are various routes to find funfing films and television:
Crowdfunding: The number of crowdfunding platforms are growing quickly. The most widely used platforms are Kickstarter and Indigogo. In recent years, the Spanish government has placed limits on the total amount of money that can be raised through crowdfunding as a protection for the banking system.
A great local Barcelona initiate is Filmpitch.org, combining crowdfunding and project pitching for local shortfilm filmmakers.
Film makers can also apply for film making grants from the Spanish government and through the European government group called Eurimage and the European Creative Fund.
Under this link is also valuable information on grants for documentary films.