Stars including Angelina Jolie, Lady Gaga, and Nicole Kidman are expected on the red carpet at Venice's film festival this year as 21 films compete for the coveted Golden Lion, organisers have said. George Clooney and Brad Pitt will also be on the Lido island in Venice's lagoon for the world's oldest film festival, running from 28 August to 7 September. The most anticipated films include Joker: Folie à Deux by director Todd Phillips, the sequel to Joker, once again starring Joaquin Phoenix - but this time alongside Lady Gaga. Lady Gaga and Joaquin Phoenix in Joker: Folie à Deux...