a wonderful film and fill with great understated performance and sharp and intelligent dialogue . what really distinguish the film and however and be that undercurrent of sadness throughout . the story be underscore by affair and loneliness and suicide and disappointment and the fear of lose one job in a world where that have disastrous consequence . most of all it be set in a world that no longer exist and have be rip apart by the beginning of world war ii . in fact and the film be barely a comedy at all if you compare the percentage of serious scene to the comic scene . yet funny it be listen to margaret sullivan harsh dismissal of jimmy stewart and watch his pained expression a he reply that her comment be a remarkable blend of poetry and meanness . it funny and pointed and and sad all at once . a remarkable achievement and one of the ten great screen comedy ever make .