Dawn of the Dead (2004)

A remake of the 1978 Romero movie of the same name where the dead come back to life and the survivors take refuge in a shopping mall. This one features the fast running living dead who are much scarier than the lumbering dead.

A group of survivors make it to a shopping mall and meet several antagonistic security guards who have already taken refuge there. Across the street from the mall is a gun store where the owner has managed to barricade himself in.

The groups communicate from their rooftops by writing on dry erase boards or large sheets of paper. At a certain point, the multitude of dead outside and the dwindling food supply at the gun store, make the group decide to try to escape to find a place where they will be safe.

There is a zombie baby, a biker gang with Tom Savini, and lots of carnage. And to be honest, the fast running living dead scare me. They can not only run after you, but they try to beat down your doors.