I'm surprised this hasn't been created yet.

EXCELLENT movie, with top-rate performances. I can see why Halle won an Oscar for it. (I will decline to comment on her speech)

I think this is one of the better movies I've seen in quite a while.

I saw it when it came out in theaters; I'd like to buy the DVD.

Yes, it is a superb film, with fine perfs all around. Billy Bob Thornton and Halle Berry play characters brought together by tragedy. Peter Boyle plays a bigot highly reminiscent of his 1970 film debut Joe.
HBO is currently running the "R" rated version; I think the DVD has an unrated version, which I believe Cinemax ran.
I have one nit-Hank (Thornton) asks for the points to be changed (among other things) on a 1989 Jeep Comanche (a pickup truck version of the Cherokee SUV.) No American car has had points since 1975, when the car manufacturers converted to electronic ignition.

The DVD also contains "deleted scenes and out-takes" which are a hoot! One out-take (from "behind the scenes") has Billy-Bob donning the character of "Karl" (from Sling Blade) and acts out the scene between Hank and his son after the son interferes with the "last walk" ... it's worth buying the DVD just for that scene!

All the cars in this film are quite old. Hank drives an old Ford Crown Victoria, Letitia (Berry) has an aging Ford Tempo, and of course there's the aforementioned Comanche.
Why would Letitia let the Tempo die for want of a radiator hose? Hoses are some of the cheapest parts of a car to replace.
NANJAO - When Letitia is driving to the prison early in the film, we see her car overheating, and the temperature gauge read "Hot." The gauge shown is the correct one for the Tempo of that vintage.

At the end, Leticia finds out that Hank was present at the prison when her husband was executed when she found her late husband's drawings...she gets mad...but says nothing to Hank.

If I were her...I'd ask some questions...like "Why didn't you tell me about your past?" etc....

I was hoping that Hank would find out who did the "hit and run" on Leticia's son...but I was disappointed.

Leticia's forgiveness towards Hank after his father insults her happens too fast to be believable. What happened to "Hell hath no fury than a woman scorned"?

Hank's transition from being a racist to non-racist seems to happen a little too quickly to be believable.

How come Hank's racist father said nothing to his son about his relationship with Leticia?