Seems like I won't get much penalties for taking down the trailers because it's hard to prove damages.
http://www.hyperorg.com/blogger/2010/02/27/the-economics-of-...
Issuing a false DMCA takedown is perjury, and the victims may have standing for a Racketeer Influenced and Corrupt Organizations civil lawsuit with substantial damages.
If you request a Warner file to be removed they will prove that they lost $billion dollars. After all, an industry that claims star wars made a loss can prove anything.
DMCA notices include the required text "under penalty of perjury". Perjury qualifies as a criminal felony, quite aside from any financial penalties. Unfortunately, nobody has ever enforced that requirement; someone ought to. Perhaps with the parties responsible for sending such notice imprisoned for up to five years (http://www.law.cornell.edu/uscode/18/1621.html), they'd think twice about sending false takedown notices.
Having said that, it's been a long time since I've seen a notice :)
I suspect the burden of proving that it was a deliberate lie to damage the other guy , in a criminal trial, is rather too high.
So, if you're not the copyright owner...
It is not saying that "I swear, under penalty of perjury, that that the product I claim is being infringed actually is being infringed".
That's a pretty important difference I think.