I didn't see this, because I heard through the industry grapevine that this was going to be bad... It's a "nature strikes back" movie that beats you over the head -- better "nature strikes back" flicks were made in the 1970s, and with better plots and twists (even though most were low budget -- better a good low budget film than an expensive turd).
They should have called this one "M. Night Samalamadingdong's KEEP OFF OF THE GRASS."
Or for the public, KEEP OUT OF THE THEATERS!
Go see THE HULK, or better yet, go see IRON MAN again!