SAN SEBASTIAN – Spain has chosen Gracia Querejeta’s “15 Years Plus a Day” as its foreign-language Oscar submission.

Winning best film and screenplay at April’s Malaga Festival, Spain’s biggest nation cinema showcase, “15 Days” reprises Querejeta’s central concern of family dynamics played across generations, here the troubled relations between a mother, her unruly son and her father, an ex military man and strict disciplinarian who takes the boy in when he’s expelled from school.

A classical film focusing on characters and actor performance, “15 Years” is sold by Madrid-based Latido Films and produced by Gerardo Herrero and Manuela Besuievsky at Tornasol Films, which already won a foreign-language Academy Award in 2010 for Juan Jose Campanella’s Argentine entry “The Secret in Their Eyes,” which Tornasol co-produced.

Maribel Verdu, best known for Alfonso Cuaron’s “Y tu mama tambien,” heads the cast.

“15 Years” beat out three other short-list contenders: Manuel Martin Cuenca’s “Cannibal,” Daniel Sanchez Arevalo’s “Family United,” and Santiago Zannou’s “Scorpion in Love.”