"The Paddy Considine character is in the line of sight in a crowded station, " says Mr Earnshaw.

BBC: What is it about trains in movies?

On a recent day in a train station, commuter Alejandro Gonzales said that a million more people are now crowded onto the subways since Transantiago did away with many of the old bus routes.

NPR: In Chile, Commuters Sue City over Transit System