Gary Hustwit created this cool documentary about city structures and how bad city planning affects people and can disorganise their every day life. In some cities a car is needed for every small activity.
Also very remarkable examples are shown about how good city planning can greatly improve the happiness of its citizens. In Columbia bikers are treated totally equal as car drivers, this creates a pro biking atmosphere and boosts prosperity and health of Colombians like crazy.
More info: http://www.hustwit.com/category/urbanized/
You can watch the trailer here: