British actor David Oyelowo discusses taking on the role of Martin Luther King Jr in new film Selma and why it took Hollywood so long to make a film about such an important figure; Mark Ellen reviews Bob Dylan's new album of Sinatra covers; Helen Macdonald reflects on winning the Costa Book of the Year Award for H is for Hawk; and Dubai-based composer Joanna Marsh reveals how she looks to the Arabic landscape for inspiration in her compositions. Show less