Terminator 3: Rise of the Machines

Connor and Kate jumped out of the trench as the security keypad and LED
screen began beeping. The screen was flashing a new message: ABORT—
EMERGENCY CLOSURE.

The blast door started to close with a tremendous squeal. The fire had triggered
some emergency circuit. Connor had a feeling that there would be no way to
override it.

Terminator brushed past Connor, got down on his hands and knees, and pulled
himself under the closing blast door, catching the bottom part of it with his
powerful shoulder.

The motors lowering the door hummed in overload, sparks flew from around the
edges of the mechanism, and groaning gears stripped with loud cracks as
Terminator put his back into the effort to not only hold the massive steel blast
door from closing, but to raise it one millimeter at a time.