I distinctly recall the IMAX preview leaking on YouTube a couple of weeks ago. I only saw a few seconds of it, though.
Also, while we’re talking about this movie, if the premise is supposed to be that the world has to get used to living with dinosaurs, I’m not sure how that’s supposed to be believable. It’s not like dinosaurs are kaiju from the Godzilla universe. Humanity can easily deal with these things, just like any other animal.