Rachel Weisz beguiles in Roger Michell's romantic thriller 'My Cousin Rachel'

Its title couldn't be more innocuous and genteel, but don't be taken in. Anchored in an exceptionally persuasive performance by Rachel Weisz, "My Cousin Rachel" is not only a triumphant exercise in dark and delicious romantic ambiguity, the pitfalls of being taken in are what this melodramatic...