I am giving an example from what I am reading. I am not implying that Star Trek is a religion; although, at times, it borders on being a cult. ("...a group that devotes itself to or venerates a person, ideal, fad, etc...." (http://www.thefreedictionary.com/cult
Who lies between the people and the artists in the movie making industry? The corporations. Who gives their approval to fund a movie? The corporations, or the people? Who regulates the content of a movie? The corporations, or the people? The people are the last to see the film. Corporations put their money into projects that they hope will succeed.
Andů? Unless filmmakers are independently wealthy and finance their own projects OR manage to convince investors to contribute to the making of a film without expectation of a return on their investment (save the satisfaction of supporting an artistic endeavour)--two scenarios that are not unheard of, but are certainly unusual--then filmmakers are beholden to those who pay the bills.
This isn't new or particular to film, incidentally. Do you think all those amazing Renaissance artists in Italy were simply doing what they wanted (either for themselves or the public) with no regard to the people footing the bill? If so, think again.
Entertainment is a business, not a charity. The people (individually or as corporations) who put up the money to produce a film generally expect some sort of return. They understand the general risk--the audience may not like it, so they might not make their money back--but they make aggregate bets to remain profitable overall. The more money is involved in a production, the greater the risk. Frankly, I'm amazed that big budget productions have the variety and creativity that they actually provide, given the financial stakes. I'm willing to concede that such films are not as daring as small budget indie films in terms of stretching the creative envelope. It would be illogical to think otherwise (as it is also the same in just about any artistic endeavour). But for every risky, envelope-pushing movie I've enjoyed (Darren Aronofsky's Pi, for example), I've also enjoyed being one of the hoi polloi
and being entertained by Trek 09 or Raiders of the Lost Ark orů It is totally unreasonable to expect studios to risk 100s of millions on something like Aronofsky's Pi--and Trek, in all of its incarnations, has NEVER been a risk-taking envelope stretcher. It has always aimed for (albeit with varying degrees of success) entertaining the masses. Let's not pretend it was ever otherwise.