Don't forget to watch Into The Wild, that's probably THE BEST road movie, I also like The Beach and there are many other road movies - Darjeeling Limited, Broken Flowers, Transamerica, Fear and Loathing in Las Vegas (well maybe this one is also really good), Little Miss Sunshine, The Motorcycle Diaries, O Brother Where art Thou, Rain man, Sideways, The Straight Story, Y Tu Mamá También...

Any other tips?