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Unfortunately, the other three pay no attention to Pete's liberating revelation, which they characterize as navel-contemplating nonsense, and soon, even Pete forgets about it.

While being chased by everyone they've encountered ( and disrupted ) in the various vignettes, they run onto a bridge, shoving people out of the way.

We see that they weren't being " wacky " at the beginning of the film ; they were desperately trying to escape being mere scripted puppets.

Finally, we see that they went to the bridge to make the ultimate assertion of free will.

They jump off the edge and commit suicide, falling a very long way and slamming into the water far below.