Here's a statement by Greer Garson, highly acclaimed and award-winning actress (Mrs. Miniver) expressing her preference toward "Feel Good" endings:
"I think the mirror should be tilted slightly upward when it's reflecting life -- toward the cheerful, the tender, the compassionate, the brave, the funny, the encouraging, all those things -- and not tilted down to the gutter part of the time, into the troubled vistas of conflict.
"I think producers felt that after playing a long series of noble and admirable characters there would be quite a lot of shock value in seeing me play something altogether different. But I prefer upbeat stories that send people out of the theater feeling better than they did coming in. It's my cup of tea." -- Actress Greer Garson