the movie is ok, but...

SPOILERS

...the one scene that always scares the hell out of me is when they try to get to the cellphone down in the ruins and then they find that *gasp* it's actually the plants doing the sound.
I was so disturbed by this scene when i first watched it, and I still don't know why- probably because it starts by setting up a hopeful solution, but then pulls the carpet from under our feet. Plus the way they reveal it is pretty damn creepy

Is this anyone else's favorite scene as well?