Speaking of accents

[AFTT47]

Why does it seem easier for non-American speakers to properly learn an American accent than for a American people to learn other accents?

I'm basing this on what I've witnessed through cinema.

Well, CapnAwesome and Boru got a big chunk of it in that we are the principle exporters of filmed entertainment.

Something you should know though, is there is no such thing as an 'American Accent'. Our accent differs wildly from area to area. I am from the state of Massachusetts and grew up there but I retain little of the accent common in that area because I haven't lived there since the early 1980s. The accent from Boston to New York to the deep south to Texas to California to Wisconsin is quite different.

America is not a monolithic culture but a collection of sub-cultures.