I'm sorry but piracy is not to blame for a 100 million movie budget. I live in a small country and we're able to produce very enjoyable films for far less than 10 million.
Pig is a great example because it essentially could have been a student project. The only thing you really needed was one good main actor, and who's to say a student of art couldn't have done a good job just as well. The location shots, the various scenes are all ultra low budget.