It appears that the Mexican National Cinema has mistaken Hanging at Picnic rock, which they have in their catalog, for it's prequel, Picnic at Hanging Rock and embedded it as the trailer for the wrong movie.
Anyway, that's how I interpret it, have a look yourself.
You can't buy this kind of publicity (actually you can but I'm eating $2 instant curries and looking for change down the back of the couch so I can't).
Maybe they'll want to show the real thing.
I went to this cinema last year and bought a couple of DVDs. Maybe it payed off somehow.
Some other stat's; It was posted there on April 5th 2010 and has received 184 views from that site.