"Your Sister's Sister"Spotlight***(three stars) If you smiled wide during the clumsy charm of Lynn Shelton's 2009 breakthrough film "Humpday," you'll eat this up straight.
Except for a headlong dive into earnestness near the end that threatens to unhinge the fast-spun humor that propels it forward, "Your Sister's Sister" is a welcome exercise in small ensemble acting that lets its wonderful sense of humor breathe through every corner.
The plot doesn't translate well, smacking deceptively of a "Three's Company" episode. Jack (Mark Duplass) is the archetypal young adult groping for purpose in life in the wake of his brother's death. To get away from it all, he takes up the offer of his brother's old girlfriend Iris (Emily Blunt) to retreat to her father's cabin among the San Juan islands. The waiting surprise is that Iris' sister Hannah (Rosemarie DeWitt) has already ensconced herself there to nurse a break-up following a seven-year relationship. The plot thickens apace into awkward drama when Iris joins them.