Thanks for posting this information. It is important for our site's growth that we not become vulnerable to copyright issues. All users/editors should keep that in mind before using copyright content. Some questions regarding this:

1. Should we give links for reference of copyright content in answer?
2. What should we do regarding giving some statistics for question from IMDB or Wiki?
3. Images, audio, video of movie or TV also have copyrights. Shouldn't we post it in question or answer?
4. If entire question/answer violates copyright law, then should we edit it or flag for moderation attention to delete it?