In the opening scene of Jules Dassin's seminal noir film Night and the City, Richard Widmark's nattily dressed small-time loser Harry Fabian is being chased through the streets of London by a man he owes money to. I love Harry's spectator shoes and stylin' checked sportcoat, but what I love even more is that when he discovers that his boutonniere has dropped on the pavement, he dashes back a few feet, picks it up, starts to re-insert it in his buttonhole (finally pocketing it in haste), and only then resumes his flight. This, gentlemen, is getting your priorities straight!
Here is Widmark in a later scene, different outfit, but boutonniere still prominent:
Breakfast is being served
3 years ago