Smash hits by black British playwrights were few and far between. Now Arinzé Kene and Natasha Gordon have work in the West End " and they're changing the audiences too In 1957, Moon on a Rainbow Shawl by Trinidad-born dramatist Errol John won a playwriting contest organised by the Observer " but its promised West End run was rejected by producers who deemed it unsuitable for audiences. They didn't think it would sel…
