Sean Penn has launched a blistering attack on the Academy Awards for "limiting filmmaking".The 64-year-old star has won two Best Actor Oscars for 'Mystic River' and 'Milk' respectively but had a scathing verdict on the "extraordinary cowardice" of those who vote for the Academy Awards for a lack of risk-taking when it comes to prize winners.Speaking at the Marrakech Film Festival, where he received a lifetime achievement award, Sean said: "The Academy have exercised really extraordinary cowardice when it comes to being part of the bigger world of expression, and in fact, have largely been part of limiting the imagination and very limiting of different cultural expectations."So I don't get very excited about what we'll call the Academy Awards (except for) when a film like 'The Florida Project', or 'I'm Still Here' (are nominated), or, you know, 'Emilia Perez',...