Here is a list of twenty ways in which movies alter our usual presumptions about scarcity.
Here is one of my favorites:
6. The ventilation system of any building is the perfect hiding place. Nobody will ever think of looking for you in there and you can travel to any other part of the building undetected.
The entire list is amusing, courtesy of the ever-inventive geekpress.com.
Or how about this one:
8. Should you wish to pass yourself off as a German officer, it will not be necessary to learn to speak German. Simply speaking English with a German accent will do.