[UnderseaLcpl]

I get a page not found error when I click on the link. However, a CBC report says that no charges have been filed yet, so it may not even be a case. Even so, under criminal law I doubt that Harrelson would have much of a case. I think he would have had a better case if he had said the cameraman intentionally provoked or startled him.

Tort law is a different story. If TMZ seeks a civil trial for damages, Harrelson could win. I'm not about to dive headfirst into New York tort law to find an example, though. The summary of New York tort law I have fills 3 books by itself. You'll have to pardon me for being lazy.
People have won tort law cases in which the odds were stacked against them much more than this, though. I'll be happy to provide some bizarre examples if anyone wants to hear them.