Marlene Dietrich was undoubtedly an icon - with an impressive string of films, lovers and mic-drop quotes. Her work in the Second World War was inspiring but her relationship with her husband and daughter reveal a much darker side to the life of the dazzling movie star. Amy Gledhill, Ria Lina and Alasdair Beckett-King decide - diva or devil?

Producer: Sasha Bobak
Evil Genius with Russell Kane is a BBC Studios production for BBC Radio 4 and BBC Sounds.