Love this film
Family plot is full of wit, funny and at times hilarious : the dialogue in the car, at the beginning of the film, with George and Blanche, full of sexual innuendo and the scene in Blanche's kitchen when she is pretending to be talking to the dead, while plotting with George...
I love the character Arthur, composed, suave and slick and George, expansive, outgoing and sometimes nervous.
I think it's a great Hitchcock film and one I like to watch again and again.