Pacino IS great - he nails the hangdog/asshole thing in every frame. And I DO have a soft spot for David Gordon Green. AND Holly Hunter is excellent. BUT I'm not sure I can bump it higher than 3 stars in good faith. Too much magical realism to swallow and Messina is trying too hard/has little to work with. An additional half a star for the cat though.
Although the general narrative is quite slow and kinda maudlin, this film stands for two core approaches: first, it portrays an elder character with a poetic point of view and brings some kind of magic to his condition without making him "young at heart"; second, it is in that sense a very confrontational film in a world so filled with blatant idealizations of youth. Al Pacino is one of the best actors of our time.
Menglehorn is full of elegant missteps which is to be expected from a movie that deigns to make grand statements about life, love, and loss in an impressionistic quilt-making kinda scattershot way. Episodic stuff, definitely a cinema of moments. Some moments are more equal than others, natch. I have become convinced from seeing him w/ unaccountable regularity recently that Pacino really soars in scenes w/ women.