People with money have influence. If we give them less money, they'll have less influence.
If you don't see the film, and one of your friends has a film reference you don't recognize, you're actively not helping the film monopoly since the time your friend invested in the film has no value to you. In this way, you're denying the network effect.
The films don't need everyone to pay for it, only a fraction. By pirating a film, you contribute the most important thing you have: your mind and social attention.
That and $8 will get you a Starbucks.
I got more time than money, and I am willing to spend that capital in exchange for a movie. A fair exchange (unless the movie sucks, in which case i want my time back, or in lieu of time, i am willing to get payed by the MPAA to watch crap movies.
Now that i realize I am actually giving the movie industry my most valuable assets, re my mind and attention, I feel Compelled not to give them my money, enough is enough.