Favorite lesser known movie to rent

[pmcalk]

Having small kids, I don't get to go out often to the movies.  And by the time most movies come out on video/DVD, I have forgotten which ones were good & bad.  There's lots of blockbusters out there, but I always enjoy finding lesser known, quality movies.  What do people recommend?
Here is my recommendation from one I watched last night:  

Crash

It was a wonderful movie about race relationships that is not preachy, and has terrific acting.  It has been a long time since I have seen a movie that I enjoyed so much.