Author of quotes: Pavel Chukhray

I come across often when journalists say:
- But why don't you make films with happy endings? Well, for optimism it is important that there was a 'Happy Ending' and that's it..!
And I get lost every time... Because it's not about how I'm formally going to end this story. And what - The author wanted to tell you? Why didn't he call you...?! Although.., it also sounds very poster... But, what was the ethical image in this all..?!?