Haha, well I had a dream about this movie the other day. I explicitly remember it being called "Scream 4". Had nothing to do with the first films except it starred Sarah Michelle Gellar (yes, she died in Scream 2). It was about a giant robot that set fire to people. And all the main characters made a big metal shell to protect themselves from a bomb the robot was making. At the end the robot set fire to the bomb around the people in the metal shell, and the ground turned into a volcano, then the robot walked into it, picked up the shell with the people and threw it into the sky. The movie ended there.
WEIRDEST DREAM EVER!!!