Taika Waititi's definition of "independent film":

My definition of "Independent Film" is a film which doesn't take any shit from any other film. It's independent, it's not gonna listen to your film or that big, rich film over there... No way, this film is gonna do what it wants. If it wants to go out and get a job then it can. It it wants to vote, that's cool. This film is gonna pay its own way, and it doesn't need your charity, so go back to the hills and swim in your infinity pool 'cause this film is hanging down here in the film ghetto.

From his interview with the poor innocent people at the Sundance Festival.