 welcome back to the arts hour on the bbc world service with me nikki baity and if you've only just joined us it was a jam-packed first half hour of the show with new zealand director lita mahuri on his latest maori historical film u.s actor ebon moss baccarat who plays cousin richie in the tv series the bear talked about not preparing for a role and the serbian performance artist marina abramovich commanded glastonbury festival silence if you missed any of that