User blog comment:Ameagle/60's slang (and the believability of period pieces)/@comment-26425680-20170723075001

I wouldn't put too much stock into what you hear in the movies. Like Swimmer said, everything is stylized, distilled, exaggerated and misrepresented in movies. That's true today, and it was true back then. I would play it mostly straight, with only a couple of "era slang" terms thrown in if you feel so compelled.