Yes, the film deals with women of an age who are usually ignored in film, and it further deals with questions of mortality and loss, which are equally overlooked. The problem is, it doesn't deal with them very well.
It's the three leads who really make this material work. Lange is very sympathetic and relatable as Arvilla, while Bates injects some needed humor. And Allen is pitch-perfect as usual, as the film's moral center of sorts.
It took brass hubcaps to make Bonneville, a midlife-chick-road-trip movie starring a '66 Pontiac convertible and a trio of middle-aged driving girlfriends in cool sunglasses, and not once have the gals give props to Thelma & Louise.
The director needed to get a better grip on the destination of this scattered narrative, along with the actual journey. Though the sheer pleasure of Bonneville is simply watching these three gifted actresses work their magic on the movie.