The premise of the movie seems pretty interesting I love the profit-share model, and the motivation behind creating the film:
"At the core of ALGORITHM’s plot are the questions that are shaking up the tech world to it’s very core, and the nations of the world right along with them: privacy, human rights, the place of government in the lives of citizens, the value and power of technology."
Lots of indie movies are put together this way. It's industry code for 'work for free.' I own a percentage of several feature films, none of which are actually worth anything. That's not an altogether bad thing, it can be a good way to gain experience or burnish your credentials, eg I will sometimes work on a project for free because it creates a connection with a particular actor or gives me the ability to call in a favor in the future.
But you should know that it's kind of an indie/student film marketing trick. It's much easier to find talented folk than the money to pay them.
I can definetly understand finding people is easier than paying them. I guess I didn't really factor the economy and indie movie scene into my response.
Experience never hurts - so long as you learn from it (and it is benifical to you (eg. connections and favors; as you pointed out)