Frank Langella is seamless in his depiction of an older gentleman whose mind is not always doing what he would like it to do. Marsden and Tyler are terrific as concerned kids trying to do what's right, or convenient, by their dad. Susan Sarandon is engaging and lovable, and the Robot is terrific, with a personality that takes over the screen when he/she/it should. The viewer finds himself (or in my case herself) drawn in to the plot, hoping for a conclusion that is good to everyone. The conclusion that is reached is logical, fair, and delightful. This is a quiet little movie with a big bang of emotions. Beautifully acted and filmed.