The movie, In Old Chicago, follows the story of the O'Leary family, pioneer settlers whose eldest boys achieve notoriety and power in bustling Chicago after the Civil War.  While one brother, Jack, is elected mayor of the city with the help of his popular brother Dion, the two lock horns over the future of Chicago's slums.  Using his cabaret singer wife as an unwitting pawn in their dispute, Dion intensifies their rivalry as the whole town seemingly takes sides.  It is at this point that the great Chicago fire of 1871 takes place when a cow in the O'Leary's stable kicks over a lantern and with it sets in motion the destruction of much of old Chicago.  This movie was produced by the legendary Darryl F. Zanuck and includes a phenominal 20 minute recreation using special effects of the great Chicago fire.  This movie won Academy Awards in 1937 for Best Supporting Actress and Best Assistant Director.  Starring Tyrone Power, Alice Faye and Don Ameche among others.  Full screen in black and white.  Released in 1938.  Runtime 96 minutes.