According to the American Humane Association, the scene involving the shooting of General Arroyo's horse had no humane representative present but the AHA spoke with Gregory Peck, who was present during the entire filming of the scene. Peck described in great detail how the shocking effect was achieved, and assured the AHA that the horse, Twister, was not harmed. The AHA went to the California ranch where Twister is kept so that we could observe him recreate his specialty fall. Twister performed beautifully and is in excellent condition.