Michelle Williams plays Lizzy, a ceramic artist stressed out by the impending opening of her solo exhibition, and Hong Chau (“The Whale”) is her blithely oblivious neighbor, fellow artist and landlord in this sharply observant art-world comedy-drama from the slow-cinema virtuosa Kelly Reichardt. Michael O’Sullivan says: “There’s a lot of talk about nothing. But it’s in between the small talk — Lizzy bickering with her family at the opening about whether there’s too much cubed cheese, or not enough — that Reichardt’s film speaks loudest. What is it saying? That the best art isn’t a religion, or magic, or maybe isn’t even genius. That, instead, it’s hard work.” (R, 108 minutes)