Mike Leigh’s Secrets and Lies (B+) pairs Brenda Blethyn and Marianne Jean-Baptiste as long-lost mother and daughter reuniting. Because Leigh uses an impromptu screenwriting technique with his actors, the focus is on the character revelations, especially since mom is white and daughter is black, but the story suffers a bit with not too much to do once we’ve established this central conceit. Still, the actresses are so charming that their story washes over you, and you feel like you’re visiting with folks you’ve known all your life.