This movie, as the title suggests, is set up to be Piku’s story: How will she make a life? But the filmmakers let Mr. Bachchan overwhelm the story. Ms. Padukone, an always likable performer, remains in his shadow, just as Piku remains in Bhashkor’s, liberated but without real agency.Star power aside, it’s a modest, reined-in entertainment, rejecting musical numbers for a simple whistled refrain, and clocking in at just two hours.