“The Woman In Cabin 10” (** out of four) was a lumbering suspense thriller about an investigative reporter (Keira Knightley) who is on a news assignment aboard a luxurious yacht from a mysterious millionaire (Guy Pearce) and soon stumbles upon a stark secret and realizes her life may be in peril. Moody but muted story never gets going and never gells. Knightley carries the movie almost single-handedly and her strong performance is the only thing that keeps this alive.