[5] Dustin Hoffman directs this tepid comedy/drama based on Ronald Harwood’s play about geriatrics putting on a concert at a home for retired muscians. Maggie Smith stars as the facility’s newest resident. She’s nervous about seeing an old flame (Tom Courtenay) and former compadres (Billy Connolly and Pauline Collins), all of whom try to coax her out of retirement to sing once more at the concert. …