In the mindless, pure-fun-to-the-point-of-almost-cartoonish-but-based-on-real-world-events category...
The Gumball Rally
A group of people from different backgrounds have one thing in common: when they hear the world "gumball" whispered by one of the others, they know that it's time for the Gumball Rally: a no-holds barred, secret, winner-take-all rally across the USA.
It's a hilarious coast-to-coast, 180 mile-an-hour, go-for-broke, outrageous road race with the world's most expensive cars. And it's all just for glory and a gumball machine.
From which we get the famous line:
http://www.youtube.com/watch?v=fDaONrHK1f8
And on a totally irrelevant note, I fell in love with the theme music of this movie from the moment I heard it. Odd, when considering that, at 17, I would have never considered listening to that genre of music at the time.