One of my favorite movies, perhaps because it leaves itself with an element of mystery in the end, is Ronin. Plus, it has excellent car-chase sequences that feature not only superbly great driving and power sliding but also no ridiculous car explosions.
There is a great sentiment expressed in a line (or two lines if you will) between two of the primary characters:
Vincent (Jean Reno): What do you want for Christmas?
Sam (Robert De Niro): My two front teeth.
Sounds about right.