Denzel is a fine actor but is wasted on this maudlin one-dimensional script. He plays a functional drunk passably, but the real gold standard for movie drunks will always be Jack Lemon in THE DAYS OF WINE AND ROSES. LEAVING LAS VEGAS is also very good, but the book is much better, and is really an autobiography of a suicidal alcoholic. This movie clearly does not understand the disease as well. But a much bigger issue is the lack of depth in the writing. Everyone is one-dimensional; the religious co-pilot, the recovering girlfriend who appears and disappears for no apparent reason in the screenplay, the uncaring lawyer. These are all cliches. And why bring up religion at all unless you are really going to discuss it, as LIFE OF PI (review here) did?
The crash sequence is done very well, and the sound design is excellent. But otherwise, this is a made-for-tv quality film.