Movies today do not know how to do ambiguous endings (SPOILERS)
First, let me say I really enjoyed Smashed. The writing and directing was great, and the acting of Winstead and Paul was amazing.
SPOILERS BELOW
But my biggest problem is with the ending. I know what they were going for here...the ambiguous ending that 1960s European and 1970s Hollywood films did so well. To use two Jack Nicholson films as an example, Five Easy Pieces has a powerfully ambiguous ending when Bobby takes off with the truck driver and leaves Rayette at the gas station. And in Chinatown, Jake gets no resolution, he's told to "forget it, it's Chinatown." These are truly ambiguous endings that leave the viewer with a lot to think about, sometimes for days, after watching the movie.
Sadly, directors today think if you just cut the story off early, it will have the same powerful effect. Not so. Two of the biggest offenders are this movie, and Steve McQueen's Shame.
Just ending the movie not knowing whether Kate and Charlie will reconcile does not make it ambiguous, or powerful, it's just a movie that ended too early.
Otherwise, this was a fine film, and one of the most honest and true depictions of alcoholism seen on the screen.