 While filming the films original climatic ending in a park the  director and his actors found themselves on their knees and their  hands in the air. Park Rangers held them at gunpoint after some park  patrons reported a man walking across the park with a gun in hand.  The director had sent one of the actors to his car to retrieve a toy  gun that was required for the scene and it was mistaken for a real  one. They were escorted out of the park and returned five months  later to finish the scene this time with permission of the park  rangers.