Accents. For a movie made outside of the UK yet containing ONE performer from England, Scotland, Ireland or Wales, would you want that

Good guy. 

Oh, a good one, naturally!

A few weeks ago BBC Radio Four ran a 5-episode drama about an English tennis star suffering from an inoperable brain tumour, electing to be preserved cryogenically in a laboratory in Seattle. The drama led via her collapsing on court in an international match played in the USA, to her being what, quite...? in Episode One. Then it jumped ahead to shortly after her having been revived from that "what, quite" condition, in what soon revealed itself as a somewhat dysfunctional, dystopian, not very "united" United States not very many years from now.

I think the BBC had bought it from America.

For the story spanned too short a time for the character in fully-revived and apparently-cured form to have picked up an American accent. Yet the lead actress did sound English in the first episode or two, but it gradually became clear she was an American unable to sustain an assumed Southern English accent for long!