body: I understand that distribution of copyrighted content is illegal, but have always thought that receiving that content was legal. However, I recently read a news article stating that people streaming pirated movies were being sued.
  
  
  What law prevents you from watching these illegal movies?
  
  
  What if the movie is being illegally aired on TV (and I was aware of this)? Would I have to immediately change the channel?
  
  
  What if a professor distributed photocopies of a book without the author's permission? Would I have to avoid looking at those pages and throw them away as soon as I had a chance?
  
  
  
title: What law makes watching pirated movies illegal?