I watched this the other night. I didn't care for it much. Gave it a 5/10 on IMDB.
I thought Matthew McConaughey accent was hard to understand in several scenes. I don't want to spoil it for anyone, but I thought the climax scene near the end could have been shot a lot better. It was just so cookie cutter. Although, I saw it coming just before it took place and thought it was a great way to tie that one character into the movie.