Filmed on location in Chicago by Egantx7

Question 3

In the 1987 film The Untouchables, one of the more dramatic scenes takes place at an ambush inside Chicago's Union Station; a scene that includes a baby in his carriage bouncing down the large staircase before being safely stopped by Andy Garcia. This shooting on the staircase scene was inspired by a scene in what 1925 silent film that is a pillar of international cinema?

Battleship Potemkin