At the start when the seaplane arrives at the jetty 2 staff come out to secure the seaplane to jetty. But it is already fastened despite having just arrived.
In the opening credits, Abnesti can be seen flying a pontoon plane and landing in the water. At the next scene, the propeller is spinning like he just landed, but the plane is already tied down to the dock.
In the last scene, Abesti and Jeff are fighting, while Abedesti is sitting on the ground without socks. In later scenes, Abnesti appears to be wearing a black stocking while walking.
Despite the US setting (inferred by the cast and air traffic control voices having all American accents) the seaplane used by Abnesti carries a civil aircraft registration code for Australia ('VH' instead of an 'N' for US-registered aircraft).
The 1969 Mercury Cougar had a windshield made from laminated glass (as mandated by FMVSS) and side windows from tempered glass .
The laminated glass prevents the occupants from being thrown out of the vehicle in a frontal collision.
During the frontal collision with a tree, the windshield shattered into small pieces, and Jeff is thrown out of the car through the windshield. Jeff's face, arms, and shirt did not have any scratches. When Jeff was trying to rescue his girlfriend from the rear seat, he easily broke the rear side window, and the glass did not shatter into small pieces as the tempered glass was designed to do so.
During the frontal collision with a tree, the windshield shattered into small pieces, and Jeff is thrown out of the car through the windshield. Jeff's face, arms, and shirt did not have any scratches. When Jeff was trying to rescue his girlfriend from the rear seat, he easily broke the rear side window, and the glass did not shatter into small pieces as the tempered glass was designed to do so.