Unfolding over the course of a late summer’s day in the fabled resort town of Sintra, Portugal, Ira Sachs’ (Little Men, Love Is Strange) new film follows three generations who have gathered for a vacation organized by the family matriarch (Isabelle Huppert). Stirred by their romantic impulses, they discover the cracks between them, as well as unexpected depth of feeling. The terrific cast includes Marisa Tomei, Brendan Gleeson, and Greg Kenner. (PG-13, 98 mins)