I'm a member of ACTRA - The Canadian actors union. I am well aware of the "new media" policies, which even today, are still not well defined by SAG or ACTRA. Unions tend to frown on the idea of their members working on new media projects for free, and for obvious reasons. The actor can negotiate their salary, but there are still certain expectations as to what they should be paid. Although union actors can work for free on these fan films, to my knowledge, not many of them do. Professional actors tend to not want to tick off their agents or union reps.