Filmmakers have long found artistic creation both a compelling and a frustratingly elusive dramatic subject. In the right cinematic hands, artworks can be made to speak for themselves – think of the dazzling sequence of canvasses that concludes Vincente Minnelli’s 1956 biopic of van Gogh, Lust For Life. In the wrong hands, the artist’s character and motives can all too readily lapse into cliché and banality. Moss & Freud explores the unlikely relationship that evolved between Kate Moss and pain