The movie featured was an actual production - see http://www.imdb.com/title/tt1352388/ - plus the story seems plausible - i doubt its a joke.

Are you sure? The timestamp on the article is "March 31, 2011 | 2:36 pm" which, unless they botched timezones, is pretty absurdly early to post an april first joke.

Also, the content is not at all surprising...

I'm skeptical - this lawsuit was filed on March 7, 2011, but the only time you hear about it is now?

There's nothing on their website about their lawsuit, additionally, if you google around for it, the only thing on it is this Wired article.