I just watched a movie called "The Happening", and it was interesting, showed how a need for quick mobilization would be easier with a little preplanning and prep. I didnt mind the general premis of the plants causing and issue, but it was good to put yourself in someone;s shoes who needed to mobilize quickly. Not highly rated but I thought it was fine.

http://www.imdb.com/title/tt0949731/

Ironwood