Does American understand every pronunciation of British person?
 

Since I'm not an English speaker, I just wondered that thing.
It is really easy to understand American and Australian's English pronunciation.
But sometime It is hard to understand when British speaker saying something.
I think I not used to that..

For example,
"~some pots out of the cupboard"

sounds like (when British pronounced)
"~some pots out overthecovered(?!)"

I was wondered that American speaker could understand 100% from British pronunciation or not.

No, I have a hard time understanding some British accents as well. Scottish and Irish accents are also very tough to understand at times.

There's this series of British movies called the Red Riding Trilogy where I have to use the subtitles when I watch them. Same with an Irish movie called Bloody Sunday.

Nope. I have a hard time understanding them sometimes, too. :p

I can, but only because the only channel I watch really is BBC America. So I learned British from Jeremy Clarkson, David Tennant and Matt Smith, Gordon Ramsay, and Philip Glenister. And movies like Layer Cake, Lock Stock and Two Smoking Barrels, and Snatch.

Some English accents are hard to understand for British people.

This x100.

It mostly depends person to person, and accent to accent.

yea its like some britsh accents are diffrent you got the cockney accent the Yorkshire accent dorset accent and the brummie accent so all thoes are some times hard cause they use different words for there accent

List of all the accents I know (BTW, some will end up overlapping)

Cockney: London
Brummie: Birmingham
Geordie: Newcastle
Scouser: Liverpool
Dorset: Look over left a bit...
Yorkshire: ...

There's probably others, but I can't think of them of the top of my head. This doesn't include Welsh, Irish or Scottish

I'm from the Midlands but one half of my family are from London and the other half are Welsh. Due to the fact that my Welsh family are in...Wales, I've spent most of my life growing up with thick cockney accents and as such my speaking patterns are extremely lazy and very Guy Ritchie, especially if I'm tired and can't put on a 'radio voice'.

TL;DR half my friends can't understand what I am saying unless I put in extra effort to actually pronounce my words. So god help the Americans.

Still, I always find it oddly insulting for some reason when I hear about American's putting on subtitles for English TV shows. I mean come on now you can't be that hard of hearing or stupid to not decipher what they are saying.