"Добрый фильм", "добрая книга", "добрая пьеса", "добрая сказка" are all perfectly fine Russian.Originally Posted by chaika
"Ирония судьбы" can be very well called "добрый фильм." "Покровские ворота" is another movie that comes to mind.
"Малыш и Карлсон" is definitely a "добрая книга."