Grounded With Louis Theroux

Radio 4, 7.15pm Oscar-winning film director Oliver Stone (right) describes how writing Scarface helped him kick his own drug habit and reveals who he believes eves is the worstworst ever US President – and it might not be who you’d expect him to say.

Drama: Star Of The Sea (Radio 4, 3pm) is an adaptation of Joseph O’Connor’s novel about the murder of a bankrupt landowner on a ship carrying people swapping Ireland’s potato famine for a new life in America.

Archive On 4: I’m Terry Gross And This Is Fresh Air (Radio 4, 8pm) showcases interviews featured on an iconic US public radio network show.