This can all change with Regulation A+, and by using the Open Assets Protocol on the Bitcoin Blockchain we can issue shares of a film to investors who can actually see a return on the money.
An open-source solution called Peershares already exists that would suit your purposes very well!
https://peershares.netPeershares is an inexpensive and decentralized ledger to be used by businesses for raising funds, tracking share ownership and distributing dividends in an automated fashion. Each business using Peershares has its own blockchain that is independent of all others and secured cheaply and easily using proof-of-stake.
It is completely free to use.
Not technically a crowd funder with bitcoin, more of an exchange where people can buy equity in a project and then get a return on what is made on the project. I don't think you can actually use bitcoins because they fluctuate in value and you can't peg a specific price to the bitcoin
Two Peershares already exist:
NuShares (
https://nubits.com/nushares/introduction) - part of a network that created the world's first stable digital currency, NuBits. NuBits are pegged to $1.00 and have been since September 2014.
BlockShares (
https://bitcointalk.org/index.php?topic=1033773.0) - part of a network that is creating a decentralized cryptoequity and cryptocurrency exchange.
If you are interested in setting up a website that can accept funding in exchange for personalized crypto shares, we'd suggest bringing your idea to the Nu forum at
https://discuss.nubits.com. NuShareholders may have some ideas for you on how to make it a reality. You could make "MovieShares", sell them to investors, and then eventually return dividends to your investors with the click of a button in your MovieShares wallet.