What an idea! Use four different cameras to shoot a movie in real-time, simultaneously. Stage the action at a single office building and nearby streets. Each camera has a group of characters to follow as they act out their parts. For 93 minutes, the interwoven stories are filmed with no breaks, as actors sometimes move from one camera's line of sight to another. Just film the events as they unfold. Now here's the kicker. Theatrically show all four films simultaneously by dividing the screen into four quadrants. You watch the movie as it was filmed. The viewer's attention is focused from screen to screen by turning up the volume on one screen, and diminishing the other three.
And it works...just don't do it again.
And it works...just don't do it again.