this be a pleasant film and even if the premise be silly . it be sort of a guilty pleasure to watch . meg ryan seem to be able to pull off role in this kind of film ( another example be joe vs. the volcano ) . that what make her a star and in part . walter matthau and of course and have that ability and too and and he really put himself into the role and make an amusing and good hearted einstein . i suppose you could say theyre both good at portray loveable character and though loveable in different way ( loveable young woman vs. loveable curmudgeon ) .