In 2014, residents of the village performed a musical piece to mark the centenary of the beginning of
World War I. Entitled "WW1 – A Village Opera", the work, written by Pembrokeshire author and poet Peter George, with music by Llangwm resident Sam Howley, wove the stories of villagers affected by the war into the greater political narrative of the buildup to war. Llangwm is home to Pembrokeshire's newest literary festival, the Llangwm Literary Festival. The festival, held each August, includes activities for both adults and for children, including creative writing and art workshops. Festival events are hosted in venues around the village. The festival has welcomed various people including
Griff Rhys Jones,
Tristan Gooley,
Ferdinand Mount,
Diana Darke,
David Horspool and
Brian John to talk about such subjects as Wales, comedy, history, tragedy and navigation. Local artists have also featured. ==References==