Totally agree with the one other reviewer (at this moment) on here; William H Macy *is* excellent in this film, and I do believe it's the first time I've ever seen the man smile! If truth be told I usually find him a bit creepy-looking (it's those miserable, hound-dog eyes) but when he smiles, he has a very boyish charm which I think makes this film. 'The Deal' is sharp and funny, with some great character acting in the supporting roles.
To be honest, I don't think you can go far wrong with a film that has both Meg Ryan and William H Macy in it. They both have impeccable taste where scripts are concerned, and an eye for stories which are several degrees different from the norm.