it MIGHT be helpful if you just want to move the car starting the engine cold then shutting it off immediately to prevent flooding (too much gas in the cylinders and on the spark plugs), which can cause hard starting.
on a rotary engine its suggested revving the engine then shut it off if the engine is cold (rotary engines are much easier to flood).
if the engine is warm, dont worry about it.
as for the movie, its just for show.
2009 Mazda RX-8 R3
2013 Toyota FJ Cruiser
2008 YAMAHA YZF-R6
Last edited by jasonbimmer; 11-19-2012 at 02:35 PM.