Sherlock actor Benedict Cumberbatch, pop star Dua Lipa, Succession actor Brian Cox and other celebs have joined more than 300 public figures in signing an open letter, on Thursday, urging Britain to stop arms sales to Israel. The stars included from the world of music, cinema and entertainment, who in the letter asked UK's Prime Minister Keir Starmer to "end the UK's complicity in the horrors in Gaza".