Visible crew/equipment: When the zombie outbreak begins on the train, Seok-woo runs into one of the train cars that have no zombies, carrying Su-an with him. He places Su-an on the ground, and just before he does so, a yellow tape marker can be seen on the ground, allowing the actor to know where to place the little girl actor when he stops running. (00:26:27)
Visible crew/equipment: At the beginning of the film, when Kim enters Seok-woo's office, you can see the reflection of a boom mic in the glass near the top left of the screen. (00:04:35)
Visible crew/equipment: Just after Seok-woo closes the door to stop Sang-hwa and Seong-kyeong from entering the train car, Sang-hwa punches a male zombie wearing a grey suit. In the shot of the grey suit zombie landing on the floor, just as another zombie runs through the doorway, a boom mic can be seen to the right of frame, briefly entering the shot. (00:26:59)
