Since expanding from theater into film, writer-director Florian Zeller has specialized in examining the pressure of mental health issues on families — dealing with dementia in The Father and depression in The Son, both based on his plays. His third feature, Bunker, puts an outwardly happy marriage under the microscope as fissures start forming and it’s most rewarding when the psychological give and take between two people who love each other remains in tight focus. That’s in large part due to the galvanizing performances of real-life couple Penélope Cruz and Javier Bardem, for whom the film was written, bringing an electric emotional…
