Continuity mistake: When Roy and Johnny are at the construction site with the guy who wants to jump, before Roy walks over to him we see the pompier belt around Johnny's waist has the carabiner hook to his left and the double tongue buckles to his right. Then when Captain Stanley tells Johnny to try and get to the guy from the other side, Johnny's belt is now around his waist the opposite way. In the following shots his life belt flips around a couple more times. Note that their pompier belts have at one side double leather straps which are the two tongue buckles, and the other side has a single strap of leather for the attached carabiner hook.