From recently released production stills from the actual movie, it turns out that the evil creature in Cloverfield is a big blue plastic bag with arms. Here it is in action:
Just by touching that woman, her nose, lips and eyes start bleeding. She also gets a sharp pain in her back. It's definitely a different monster than what was expected. The look of it reminds me of this story in the States.
It's obligatory train station chase that most action movies have, with the main characters' backs starting to cramp up.
Here they are, barely able to walk because the back pain is so intense.
I'll post up the proper trailer when it's released online in QuickTime. With all these crappy camera in a cinema clips and the like.