Revisiting "Bloody Sunday," although it wasn't as shocking as the first time I watched it, this time I noticed more details. The director of this film, Paul Greengrass, originally a news journalist, used handheld cameras and on-site sounds to semi-documentarily and accurately recreate the entire process of the British army suppressing the Northern Ireland civil rights movement in 1972. A large number of extremely vivid details in the film easily evoke emotional investment from the audience — condemnation of violent acts and sympathy for innocent civilians who were killed, which moved me as well, hehe. In fact, this incident itself was highly controversial, with both sides in Northern Ireland and the British military sticking to their own accounts, both claiming that the other side "fired the first shot." Although there has been increasing evidence in recent years suggesting that this crackdown might have been a planned massacre by the British government, the truth has yet to be fully uncovered...