Rusty mentions two classics - The Day the Earth Stood Still where there is also a shot of a Santa Fe Warbonnet passenger halted by the power outage and one of my favorites - Wallace and Grommet with the afore-mentioned 'bottomless box of track'.
If you haven't seen this one (First saw it with my two boys when they were young) it is very clever and entertaining with lots of little subtle touches of humor aimed at the parents. Great film!