No one is out of reach for the web pirates these days, even new movies before their official release date!! As far as I remember this is the first time the entire movie leaked into the pirate downloads site before its official theatrical release. So what can you do in this situation? Probably nothing! Unfortunately (or fortunately) internet is this kind of uncontrolled world, where everything can happen and you can't stop it.
I personally don't go to movie theaters that much, but I do pay for my movies when I buy DVD or cable on demand. I think downloading illegal movies, especially before their release date is as criminal as bank robbery. Even if you disagree with what the film maker is saying respect the amount of time and money someone put into it and all the people that worked or it. I hope so.
"Sisco", the new doc film by Michael Moore is set to release on June 29th and will probably shock our health system the same way as "Fahrenheit 9/11" and "Bowling for Columbine" shocked our society.