There is a deep sense of inevitability to Still Alice, Richard Glatzer and Wash Westmoreland’s Alzheimer’s drama based on Lisa Genova’s novel, a feeling that is only partly down to its heroine’s arc of incurable mental deterioration. Alice Howland (Julianne Moore) is a clever and accomplished linguistic professor whose cosy professional and family life unravels when she is diagnosed with an on-set variation of the disease, one which takes effect with a cruel swiftness. Early on she loses her way in a conference speech, but as the rot accelerates she begins to forget names, appointments, memories and, in the film’s principal, on-the-nose irony, whole…