Visible crew/equipment: When the passengers find out about the bomb and Striker tackles the man who has it, when the briefcase with the bomb in it goes in the air, you can see a string attached to it to pull it up.

Revealing: When Ted jumps over the wall of the Mental Home and lands on the grass, it moves under him and it's even a distinctly different colour from the rest of the grass, indicating it's a crash mat.