Barry Kudrowitz: The following concept sketches pertain to the falling elevator gag. Please review this storyboard prior to reviewing these concept sketches.
The elevator should have a footprint of 6.75' x 6.75' providing a standing room of 6'x6'. The elevator shown above is has its entrance and exit at a 90 degree angle to accommodate the floor plan. The entrance should have a warning or caution sign explaining that the elevator is no longer in service or needs repair. The facade should be similar to standard service elevators. As shown in the figure, there should be a means of projecting or scrolling an image across the elevator windows to product the illusion of decent. This can be achieved in a number of ways, but a simple screen method is shown in the figure above.
The figure above is the floor of the service elevator. It illustrates one means of achieving a simulated fall effect. In this sketch, the floor is supported by several hydraulic pistons which are capable of supporting and raising fifteen people approximately six inches. The floor would drop instantly to simulate the initial acceleration and then raise quickly to simulate the impact with the basement floor. This process resets itself for the next group. The floor may also be mesh to allow air jets to enhance the falling effect.

The above figures illustrate a means of enhancing the falling effect. The perspective is from a passenger inside the elevator looking out one of the elevator windows. A hallway scene is scrolled across the window.

NOTE: The above figure is not in 2-point perspective. The nature of the concept being illustrated (a hallway) is naturally in 1-point perspective

The related storyboards can be found at the storyboard main page.