Robin Williams is in serious, simpering mode for this science-fiction drama about a “cutter” who edits footage that a person with a video-recording implant records from the day of his or her birth. The assembled movie, or “rememory,” is then shown at the person’s funeral. Intriguing ethical, technical and even theological questions arise, but writer-director Omar Naim has a clumsy, ham-handed style that neuters his clever idea.