Thanks to Clark Griswold

The original ending of the movie was totally different and never seen by audiences.



In the original ending, after Clark punches Marty Moose, and buys the b.b. gun, he than drives into Beverly Hills instead of returning to Walley World. He finds Roy Walley's mansion and drives thru the front gates to find Roy Walley on the back patio having a meeting with some of his associates. Clark then forces Walley and his associates at gunpoint, to sing and dance to some Marty Moose songs.



The police arrive and the ending is similar to the police arriving at Walley World. Clark and Roy have a heart to heart and Walley decides not to press any charges.



The final scene is the Griswolds on an airplane. They are discussing their vacation, and how they must add Roy Walley to their christmas card list and wearing Marty Moose hats. The flight attendant announces on the P.A. that the flight is headed on a non-stop to Atlanta. Clark realizing they are on the wrong plane, gets up and begins to scream that they are on the wrong plane. Then it cuts to the runway and you hear the ground control radioing in for security about a cabin disruption.



Six months after the film ended production, it was screened to preview audiences and they hated the ending. So the cast and crew got back together and shot the Walley World ending.